B. Gaucher | IBM Research (original) (raw)

Papers by B. Gaucher

IEEE 60th Vehicular Technology Conference, 2004. VTC2004-Fall. 2004

Design and analysis of a new multiband antenna is presented. The antenna is suitable for use in h... more Design and analysis of a new multiband antenna is presented. The antenna is suitable for use in handheld or other mobile devices. This antenna has a smaller size, and can be built on a double-sided printed circuit board or stamped from thin sheet metal. The antenna can also be built as an on-board antenna to reduce the manufacturing cost. The

2005 IEEE Antennas and Propagation Society International Symposium

ABSTRACT

Apparatus and methods are provided for integrally packaging semiconductor IC (integrated circuit)... more Apparatus and methods are provided for integrally packaging semiconductor IC (integrated circuit) chips with antennas having one or more radiating Board-Level Interconnect

2007 European Microwave Conference, 2007

... a BiCMOS Technology Hanyi Ding, Guoan Wang, Kwanhim Lam, Donald Jordan, Adam Zeeb, Amit Bavis... more ... a BiCMOS Technology Hanyi Ding, Guoan Wang, Kwanhim Lam, Donald Jordan, Adam Zeeb, Amit Bavisi, Essam Mina, Brian Gaucher1 ... 458 Page 2. couplers are fabricated at the top metal level with bottom shield to minimize the effects of the lossy silicon substrate. ...

Topical Meeting on Silicon Monolithic Integrated Circuits in RF Systems, 2007

This paper reviews silicon millimeter-wave radio circuits operating between 60 and 100GHz. Transm... more This paper reviews silicon millimeter-wave radio circuits operating between 60 and 100GHz. Transmitter and receiver chips operating in the 60-GHz ISM band are highlighted, where the packaged chipset has shown data rates as high as 2 Gb/s over 5m for a wireless high-definition video link. In addition, a 60GHz PA with 23dBm output power and a class-E 60GHz PA with

ABSTRACT This paper addresses the need for low-profile, ultra-wideband (UWB) antenna designs, whi... more ABSTRACT This paper addresses the need for low-profile, ultra-wideband (UWB) antenna designs, which are required for laptop and other portable devices. By slotting the vertical ground plane close to the radiator of the antenna and modifying the feeding structure, a low-profile antenna is capable of providing well-matched bandwidth and accepted gain over UWB band. The design is validated by measurement in terms of impedance bandwidth, radiation patterns and gain. 1. INTRODUCTION Recently, the wireless systems based on ultra-wideband (UWB) technology have been proposed to increase data rate for indoor, short-range, low-power wireless communications or localization systems as a next generation wireless communication technology. The UWB wireless systems may transmit and receive signals with more than 100% bandwidth (3.1GHz – 10.6 GHz) and very low emission limits of EIRP (equivalent isotropic radiated power) levels <-41.3 dBm/MHz. The requirement for UWB antennas should include high efficiency, broad impedance matching, horizontally omni-directional radiation, and small size in order to integrate UWB wireless systems into portable devices such as laptop computers. Furthermore, the latest trend is to build these wireless systems into portable devices through various interfaces. For embedded solutions the antennas are required to reside with the devices such as the laptop computer itself, underneath the plastic, composite or metals covers. This maintains the computer physical outline without any affix, and also reduces the possibility of accidental breakage. However, one has to suffer from the degraded performance of embedded antennas. The embedded antennas usually do not perform as well as external ones due to greatly reduced space required for optimal designs, being partially hidden within semi-conducting or conducting materials and the proximity effect of metallic cover and/or LCD (Liquid Crystal Display) panel. To achieve acceptable performance of embedded antennas, the commonly used method is to keep the antenna away from any metal component of a laptop computer. Depending on the design of laptop computers and type of antennas, the distance between the antenna and metal components should be as large as possible. In existing UWB solutions, the antennas are installed outside of the devices for RF links or testing. Typically, broadband antenna designs require even more space than relatively narrow band or multi-band designs such as used in WLAN. This additional space constraint becomes a bottleneck in embedded UWB antenna design. Usually, the available thickness is less than 2 mm, and the height is less than 10 mm for the antenna part, depending upon the types of laptop covers. The planar antennas are extensively investigated and used [1-4]. However, the antennas are too bulky to be embedded into a portable device, like a laptop computer. To reduce the height of an antenna, the inverted-L or F antennas are often employed. However, it is difficult to use the inverted-L or F antennas to cover the whole UWB bandwidth due to their narrowband features although they can achieve multi-band performance with additional resonators. Recently, with development of periodic-structure techniques, such as frequency selective surface (FSS), electromagnetic band-gap (EBG), the concept of artificial magnetic conductor (AMC) has been proposed. The AMC can be produced by printing metallic arrays on grounded dielectric slabs so that it fully reflects the incident waves with zero reflection phase. However, the reflection characteristics

2007 European Microwave Integrated Circuit Conference, 2007

Feasibility of wideband on-chip RF switch operating at millimeter wave frequencies using PIN diod... more Feasibility of wideband on-chip RF switch operating at millimeter wave frequencies using PIN diodes in IBM .13 mum SiGe technology is demonstrated. A SPDT reflective switch targeting 60 GHz wireless and radar applications is designed, fabricated, and measured. Good correlations between simulation and hardware are reported. Measured data show 2.0 to 2.7 dB of insertion loss over 51 to 78 GHz bandwidth with better than 12 dB return loss and 25 to 35 dB of isolation.

IEEE International Workshop on Antenna Technology Small Antennas and Novel Metamaterials, 2006., 2000

A coplanar patch antenna suitable for integration with millimeter wave (mmWave) transceiver ICs i... more A coplanar patch antenna suitable for integration with millimeter wave (mmWave) transceiver ICs is presented. The antenna is printed on a fused silica substrate and can be connected to a silicon transceiver via solder balls with 150µm pitch. The antenna was designed and manufactured for the 60GHz industrial scientific medical (ISM) band and shows about 5GHz of bandwidth with high

IEEE International Workshop on Antenna Technology Small Antennas and Novel Metamaterials, 2006., 2000

IEEE Antennas and Propagation Society International Symposium. Digest. Held in conjunction with: USNC/CNC/URSI North American Radio Sci. Meeting (Cat. No.03CH37450), 2000

... Duixian Liu* and Brian Gaucher IBM Thomas J. Watson Research Center, Yorktown Heights, NY 105... more ... Duixian Liu* and Brian Gaucher IBM Thomas J. Watson Research Center, Yorktown Heights, NY 10598 duixian@us.ibm.com ... many laptop computers with built-in I IMbps 802.1 Ib wireless LAN capability and the newly developed Bluetooth technology for cable replacement to ...

IEEE Antennas and Propagation Society International Symposium (IEEE Cat. No.02CH37313), 2000

The current trend is to integrate these systems into portable platforms such as laptops. To date ... more The current trend is to integrate these systems into portable platforms such as laptops. To date it has been through the PCMCIA interface. To avoid the problematic issues of breakage and I10 constraints, there is an industry-wide push to completely integrate these ...

6th International SYmposium on Antennas, Propagation and EM Theory, 2003. Proceedings. 2003, 2003

In this paper, the simulation results of a dual band access point antenna for WLAN applications h... more In this paper, the simulation results of a dual band access point antenna for WLAN applications have been presented. As shown in the results, the input impedances at the center of both bands are about 50 ohms. Therefore, an additional matching network is not necessary. This means there is no efficiency loss due to adding matching networks. The radiation patterns

Proceedings IEEE 56th Vehicular Technology Conference, 2000

... [9] D. Liu, “Branch number and height effects on the multi-branch dual-band monopole antenna,... more ... [9] D. Liu, “Branch number and height effects on the multi-branch dual-band monopole antenna,” IEEE Antennas and Propagation Society International Symposium and URSI Radio Science Meeting Proceedings vol. ...

IWAT 2005. IEEE International Workshop on Antenna Technology: Small Antennas and Novel Metamaterials, 2005., 2005

A simple dual band 802.11a/b antenna system fabricated on a double-sided printed circuit board (P... more A simple dual band 802.11a/b antenna system fabricated on a double-sided printed circuit board (PCB) is described. This low profile antenna, which is 0.8 mm in thickness and 6×40 mm in width and length respectively, is mounted onto the top of a laptop metal display frame. The antenna system has an average gain better than -1 dBi in the 2.4

2006 IEEE Antennas and Propagation Society International Symposium, 2006

The wideband and high efficiency folded dipole antenna for 60 GHz applications with the integrati... more The wideband and high efficiency folded dipole antenna for 60 GHz applications with the integration capability in a low-cost plastic packaging technology was presented. The proximity of the cavity metal walls was used in an input impedance bandwidth enhancement process. Moreover, the metal cavity has the potential to make the antenna performance to a large extend insensitive to the surrounding

2006 IEEE 63rd Vehicular Technology Conference, 2006

... especially for high data rate short range applications. One of the challenges in UWBsystems i... more ... especially for high data rate short range applications. One of the challenges in UWBsystems is to design the antennas that can cover the ultra-wide bandwidth of 3.1-10.6 GHz yet small enough to reside inside portable devices. ...

2007 IEEE Bipolar/BiCMOS Circuits and Technology Meeting, 2007

Abstract — A feature-rich second-generation 60-GHz transceiver chipset is introduced. It integrat... more Abstract — A feature-rich second-generation 60-GHz transceiver chipset is introduced. It integrates dual-conversion superheterodyne receiver and transmitter chains, a sub-integer frequency synthesizer, full programmability from a digital interface, modulator and demodulator ...

2007 Proceedings 57th Electronic Components and Technology Conference, 2007

On-chip millimeter wave Wilkinson power divider has been developed with the Back End of Line (BEO... more On-chip millimeter wave Wilkinson power divider has been developed with the Back End of Line (BEOL) wiring and enabled as a library device in a 0.13um BiCMOS Process Design Kit. The device layout and model are fully scalable, i.e. users can design a power divider at different frequencies or in different reference characteristic impedance systems by inputting the dimensions. Excellent model and hardware correlation has been observed up to 110GHz. The measured results show that very good performance on-chip Wilkinson power dividers have been obtained in this technology, such as less than about 0.1dB amplitude imbalance, about 0.8dB of insertion loss with bandwidth of about 15% of the design frequency (defined at 15dB return loss level) and about 20dB of isolations. In addition, the device is the Design Rule Check (DRC) clean and the Layout versus Schematic (LVS) enabled, which help to shorten the design cycle.

2007 IEEE Antennas and Propagation International Symposium, 2007

A broadband and high-efficiency 60GHz folded dipole antenna integrated in a plastic package techn... more A broadband and high-efficiency 60GHz folded dipole antenna integrated in a plastic package technology was presented. Its performance showed an extremely low sensitivity to the variable surrounding package and board level environments, which is of importance at mmWave frequencies. Furthermore, the presence of the silicon chip in a plastic package can be important for the antenna gain bandwidth enhancement.

iiis.org

... NJ 08854, US Yorktown Heights, NY 10598, US and Pradeep Varma IBM Research,Vasant Kunj Phase ... more ... NJ 08854, US Yorktown Heights, NY 10598, US and Pradeep Varma IBM Research,Vasant Kunj Phase II, Vasant Institutional Area New Delhi, DL 110070, IN ABSTRACT This case study describes the application of modern ...

IEEE 60th Vehicular Technology Conference, 2004. VTC2004-Fall. 2004

Design and analysis of a new multiband antenna is presented. The antenna is suitable for use in h... more Design and analysis of a new multiband antenna is presented. The antenna is suitable for use in handheld or other mobile devices. This antenna has a smaller size, and can be built on a double-sided printed circuit board or stamped from thin sheet metal. The antenna can also be built as an on-board antenna to reduce the manufacturing cost. The

2005 IEEE Antennas and Propagation Society International Symposium

ABSTRACT

Apparatus and methods are provided for integrally packaging semiconductor IC (integrated circuit)... more Apparatus and methods are provided for integrally packaging semiconductor IC (integrated circuit) chips with antennas having one or more radiating Board-Level Interconnect

2007 European Microwave Conference, 2007

... a BiCMOS Technology Hanyi Ding, Guoan Wang, Kwanhim Lam, Donald Jordan, Adam Zeeb, Amit Bavis... more ... a BiCMOS Technology Hanyi Ding, Guoan Wang, Kwanhim Lam, Donald Jordan, Adam Zeeb, Amit Bavisi, Essam Mina, Brian Gaucher1 ... 458 Page 2. couplers are fabricated at the top metal level with bottom shield to minimize the effects of the lossy silicon substrate. ...

Topical Meeting on Silicon Monolithic Integrated Circuits in RF Systems, 2007

This paper reviews silicon millimeter-wave radio circuits operating between 60 and 100GHz. Transm... more This paper reviews silicon millimeter-wave radio circuits operating between 60 and 100GHz. Transmitter and receiver chips operating in the 60-GHz ISM band are highlighted, where the packaged chipset has shown data rates as high as 2 Gb/s over 5m for a wireless high-definition video link. In addition, a 60GHz PA with 23dBm output power and a class-E 60GHz PA with

ABSTRACT This paper addresses the need for low-profile, ultra-wideband (UWB) antenna designs, whi... more ABSTRACT This paper addresses the need for low-profile, ultra-wideband (UWB) antenna designs, which are required for laptop and other portable devices. By slotting the vertical ground plane close to the radiator of the antenna and modifying the feeding structure, a low-profile antenna is capable of providing well-matched bandwidth and accepted gain over UWB band. The design is validated by measurement in terms of impedance bandwidth, radiation patterns and gain. 1. INTRODUCTION Recently, the wireless systems based on ultra-wideband (UWB) technology have been proposed to increase data rate for indoor, short-range, low-power wireless communications or localization systems as a next generation wireless communication technology. The UWB wireless systems may transmit and receive signals with more than 100% bandwidth (3.1GHz – 10.6 GHz) and very low emission limits of EIRP (equivalent isotropic radiated power) levels <-41.3 dBm/MHz. The requirement for UWB antennas should include high efficiency, broad impedance matching, horizontally omni-directional radiation, and small size in order to integrate UWB wireless systems into portable devices such as laptop computers. Furthermore, the latest trend is to build these wireless systems into portable devices through various interfaces. For embedded solutions the antennas are required to reside with the devices such as the laptop computer itself, underneath the plastic, composite or metals covers. This maintains the computer physical outline without any affix, and also reduces the possibility of accidental breakage. However, one has to suffer from the degraded performance of embedded antennas. The embedded antennas usually do not perform as well as external ones due to greatly reduced space required for optimal designs, being partially hidden within semi-conducting or conducting materials and the proximity effect of metallic cover and/or LCD (Liquid Crystal Display) panel. To achieve acceptable performance of embedded antennas, the commonly used method is to keep the antenna away from any metal component of a laptop computer. Depending on the design of laptop computers and type of antennas, the distance between the antenna and metal components should be as large as possible. In existing UWB solutions, the antennas are installed outside of the devices for RF links or testing. Typically, broadband antenna designs require even more space than relatively narrow band or multi-band designs such as used in WLAN. This additional space constraint becomes a bottleneck in embedded UWB antenna design. Usually, the available thickness is less than 2 mm, and the height is less than 10 mm for the antenna part, depending upon the types of laptop covers. The planar antennas are extensively investigated and used [1-4]. However, the antennas are too bulky to be embedded into a portable device, like a laptop computer. To reduce the height of an antenna, the inverted-L or F antennas are often employed. However, it is difficult to use the inverted-L or F antennas to cover the whole UWB bandwidth due to their narrowband features although they can achieve multi-band performance with additional resonators. Recently, with development of periodic-structure techniques, such as frequency selective surface (FSS), electromagnetic band-gap (EBG), the concept of artificial magnetic conductor (AMC) has been proposed. The AMC can be produced by printing metallic arrays on grounded dielectric slabs so that it fully reflects the incident waves with zero reflection phase. However, the reflection characteristics

2007 European Microwave Integrated Circuit Conference, 2007

Feasibility of wideband on-chip RF switch operating at millimeter wave frequencies using PIN diod... more Feasibility of wideband on-chip RF switch operating at millimeter wave frequencies using PIN diodes in IBM .13 mum SiGe technology is demonstrated. A SPDT reflective switch targeting 60 GHz wireless and radar applications is designed, fabricated, and measured. Good correlations between simulation and hardware are reported. Measured data show 2.0 to 2.7 dB of insertion loss over 51 to 78 GHz bandwidth with better than 12 dB return loss and 25 to 35 dB of isolation.

IEEE International Workshop on Antenna Technology Small Antennas and Novel Metamaterials, 2006., 2000

A coplanar patch antenna suitable for integration with millimeter wave (mmWave) transceiver ICs i... more A coplanar patch antenna suitable for integration with millimeter wave (mmWave) transceiver ICs is presented. The antenna is printed on a fused silica substrate and can be connected to a silicon transceiver via solder balls with 150µm pitch. The antenna was designed and manufactured for the 60GHz industrial scientific medical (ISM) band and shows about 5GHz of bandwidth with high

IEEE International Workshop on Antenna Technology Small Antennas and Novel Metamaterials, 2006., 2000

IEEE Antennas and Propagation Society International Symposium. Digest. Held in conjunction with: USNC/CNC/URSI North American Radio Sci. Meeting (Cat. No.03CH37450), 2000

... Duixian Liu* and Brian Gaucher IBM Thomas J. Watson Research Center, Yorktown Heights, NY 105... more ... Duixian Liu* and Brian Gaucher IBM Thomas J. Watson Research Center, Yorktown Heights, NY 10598 duixian@us.ibm.com ... many laptop computers with built-in I IMbps 802.1 Ib wireless LAN capability and the newly developed Bluetooth technology for cable replacement to ...

IEEE Antennas and Propagation Society International Symposium (IEEE Cat. No.02CH37313), 2000

The current trend is to integrate these systems into portable platforms such as laptops. To date ... more The current trend is to integrate these systems into portable platforms such as laptops. To date it has been through the PCMCIA interface. To avoid the problematic issues of breakage and I10 constraints, there is an industry-wide push to completely integrate these ...

6th International SYmposium on Antennas, Propagation and EM Theory, 2003. Proceedings. 2003, 2003

In this paper, the simulation results of a dual band access point antenna for WLAN applications h... more In this paper, the simulation results of a dual band access point antenna for WLAN applications have been presented. As shown in the results, the input impedances at the center of both bands are about 50 ohms. Therefore, an additional matching network is not necessary. This means there is no efficiency loss due to adding matching networks. The radiation patterns

Proceedings IEEE 56th Vehicular Technology Conference, 2000

... [9] D. Liu, “Branch number and height effects on the multi-branch dual-band monopole antenna,... more ... [9] D. Liu, “Branch number and height effects on the multi-branch dual-band monopole antenna,” IEEE Antennas and Propagation Society International Symposium and URSI Radio Science Meeting Proceedings vol. ...

IWAT 2005. IEEE International Workshop on Antenna Technology: Small Antennas and Novel Metamaterials, 2005., 2005

A simple dual band 802.11a/b antenna system fabricated on a double-sided printed circuit board (P... more A simple dual band 802.11a/b antenna system fabricated on a double-sided printed circuit board (PCB) is described. This low profile antenna, which is 0.8 mm in thickness and 6×40 mm in width and length respectively, is mounted onto the top of a laptop metal display frame. The antenna system has an average gain better than -1 dBi in the 2.4

2006 IEEE Antennas and Propagation Society International Symposium, 2006

The wideband and high efficiency folded dipole antenna for 60 GHz applications with the integrati... more The wideband and high efficiency folded dipole antenna for 60 GHz applications with the integration capability in a low-cost plastic packaging technology was presented. The proximity of the cavity metal walls was used in an input impedance bandwidth enhancement process. Moreover, the metal cavity has the potential to make the antenna performance to a large extend insensitive to the surrounding

2006 IEEE 63rd Vehicular Technology Conference, 2006

... especially for high data rate short range applications. One of the challenges in UWBsystems i... more ... especially for high data rate short range applications. One of the challenges in UWBsystems is to design the antennas that can cover the ultra-wide bandwidth of 3.1-10.6 GHz yet small enough to reside inside portable devices. ...

2007 IEEE Bipolar/BiCMOS Circuits and Technology Meeting, 2007

Abstract — A feature-rich second-generation 60-GHz transceiver chipset is introduced. It integrat... more Abstract — A feature-rich second-generation 60-GHz transceiver chipset is introduced. It integrates dual-conversion superheterodyne receiver and transmitter chains, a sub-integer frequency synthesizer, full programmability from a digital interface, modulator and demodulator ...

2007 Proceedings 57th Electronic Components and Technology Conference, 2007

On-chip millimeter wave Wilkinson power divider has been developed with the Back End of Line (BEO... more On-chip millimeter wave Wilkinson power divider has been developed with the Back End of Line (BEOL) wiring and enabled as a library device in a 0.13um BiCMOS Process Design Kit. The device layout and model are fully scalable, i.e. users can design a power divider at different frequencies or in different reference characteristic impedance systems by inputting the dimensions. Excellent model and hardware correlation has been observed up to 110GHz. The measured results show that very good performance on-chip Wilkinson power dividers have been obtained in this technology, such as less than about 0.1dB amplitude imbalance, about 0.8dB of insertion loss with bandwidth of about 15% of the design frequency (defined at 15dB return loss level) and about 20dB of isolations. In addition, the device is the Design Rule Check (DRC) clean and the Layout versus Schematic (LVS) enabled, which help to shorten the design cycle.

2007 IEEE Antennas and Propagation International Symposium, 2007

A broadband and high-efficiency 60GHz folded dipole antenna integrated in a plastic package techn... more A broadband and high-efficiency 60GHz folded dipole antenna integrated in a plastic package technology was presented. Its performance showed an extremely low sensitivity to the variable surrounding package and board level environments, which is of importance at mmWave frequencies. Furthermore, the presence of the silicon chip in a plastic package can be important for the antenna gain bandwidth enhancement.

iiis.org

... NJ 08854, US Yorktown Heights, NY 10598, US and Pradeep Varma IBM Research,Vasant Kunj Phase ... more ... NJ 08854, US Yorktown Heights, NY 10598, US and Pradeep Varma IBM Research,Vasant Kunj Phase II, Vasant Institutional Area New Delhi, DL 110070, IN ABSTRACT This case study describes the application of modern ...