A Compact Dual-Band Fork-Shaped Monopole Antenna for Bluetooth and UWB Applications (original) (raw)
Related papers
2011
In this article, a compact microstrip-fed printed dual band antenna for Bluetooth (2.4-2.484 GHz) and UWB (3.1-10.6 GHz) applications with WLAN (5.15-5.825 GHz) band-notched characteristics is proposed. It is demonstrated that dual band characteristics with desired bandwidth can be obtained by using a fork shaped radiating patch, whereas, band-notched characteristics can be obtained by etching two L-shaped slots and two symmetrical step slots on the rectangular ground plane. The proposed antenna is simulated, fabricated and tested. The structure is fabricated on a low cost FR4 substrate having dimensions of 50 mm (L sub) × 24 mm (W sub) × 1.6 (H) mm and fed by a 50 Ω microstrip line. The proposed antenna has S 11 ≤ −10 dB over 2.18-2.59 GHz, Bluetooth band, 3.098-5.15 GHz and 5.948-11.434 GHz, UWB band with WLAN band notch. The structure exhibits nearly omnidirectional radiation patterns, stable gain, and small group delay variation over the desired bands.
Microstrip fed highly compact Bluetooth integrated wideband antenna for wireless application
International Journal of Electronics Letters, 2018
In this paper, a compact microstrip fed UWB monopole antenna for dual band applications is proposed and investigated. The base of the proposed antenna is a rectangular shaped radiator. The radiator of an antenna occupies a small area of only 10.2 × 7.6 mm 2 (0.081λ 0 × 0.06λ 0) that covers the UWB frequency range. To create a dual band antenna by etching a quarter wavelength resonator, loop strips into radiator is designed which generates the notch band characteristic. The proposed structure consists of rectangular patch shape at centre with two symmetrical loop strips. Dual band antenna is designed on FR-4 substrate whose dielectric constant is 4.4, tangent loss 0.02 and thickness 1.59 mm. The overall size of proposed antenna is 15 mm × 15 mm (0.12λ 0 × 0.12λ 0). The 10-dB impedance bandwidth of the antenna is 520 MHz (2.3-2.82 GHz) and 5.51 GHz (3.8-9.31 GHz). Also same configuration antenna is designed on Roger RT/Duroid substrate whose dielectric constant is 2.2, loss tangent 0.0009 and thickness 30 mil (0.762 mm). The simulated result is approximately same as FR-4. It covers the LTE, ISM, WLAN, WiMAX, X band satellite communication and ITU bands for wireless communications. To verify the proposed antenna design and response, a prototype has been fabricated on FR-4 and parameters are measured. The measured response validates the simulated response.
Dual-Band Modified Circular Shaped Monopole Antenna for Wireless Applications
This article describes a compact, low profile, modified circular-shaped Ultra Wide Band (UWB) antenna with dual-band operation for wireless communications. The antenna demonstrates the operation for dual-band and can be used to cover 2.4-2.48 GHz (Bluetooth) and 3.1-10.6 GHz (UWB) frequency bands. The antenna contains a modified monopole circular patch with a partial ground plane to cover the whole UWB band. The circular arc slot is embedded within the center portion of the modified circular radiating patch to resonate over the Bluetooth band. The antenna is created and modified on a low-cost FR-4 substrate with a dielectric constant of 4.4 and a loss tangent of 0.02. The antenna is feed by a 50 Ω microstrip line withthe overall surface area of 45×35 mm 2. The electromagnetic suite Ansoft's HFSS v.19.0 software is employed for the simulation of the antenna. The simulated VSWR is within the range of 2: 1 over 2.38-2.56 GHz and 2.86-11 GHz. The antenna exhibits all-around satisfying gain flatness having an omnidirectional radiation pattern over Bluetooth and UWB band.
Spanner-Shaped Ultra-Wideband Monopole Antenna with Bluetooth and GSM Coverage
In this paper, the design and analysis of a compact size microstrip ultra-wideband (UWB) antenna is considered. The antenna is mounted on a 38 mm 25 mm cheap FR4 substrate of dielectric constant ε = 4.4 and thickness of 1.6 mm. The original shape of the patch is circular; and a hexagonal notch is removed (making it a spanner-shaped antenna) to achieve ultra-wideband characteristics. To cover the Bluetooth and the GSM 1800 bands, a meandered strip is integrated with the spanner-shaped antenna. Also, the antenna has super-wideband characteristics with an upper frequency edge of 50 GHz. To reject the interference from WiMAX (3.5 GHz) and WLAN (5.5 GHz), two slots are etched from the radiating patch. The antenna has a stable Omni-directional radiation pattern and a peak gain that increases in the UWB range from 2 dBi to 10 dBi, while it is almost 0.7 dBi at the GSM 1800 center frequency and 1.65 dBi at the Bluetooth center frequency. Measurements show a good agreement with the simulated results which are obtained using HFSS simulator.
A Compact Triple-Band Fork-Shaped Printed Slot Antenna for GSM, Bluetooth and UWB Applications
6th European Conference on Antennas and Propagation (EUCAP), 2012
A Compact triple-band fork-shaped printed slot antenna for GSM, Bluetooth and UWB Applications is proposed. Triple-band operations covering the UWB frequency range (3.1-10.6 GHz), GSM band, at frequencies of 1.8 GHz, and Bluetooth band, at frequencies of 2.4 GHz, are obtained by creating quarter-wavelength stubs in the ground plane of fork shaped printed slot antenna. The proposed antenna is fabricated on FR4 substrate and measured results are presented and discussed. The antenna has a compact size, 35×35×1.6 mm 3 , stable radiation pattern and return loss of better than 10 dB over the whole of the triple bands.
A compact quad-band planar monopole antenna for Bluetooth/WiMAX/WLAN applications
2013 International Conference on Microwave and Photonics (ICMAP), 2013
A small size, low profile planar monopole antenna which operates in four frequency bands is proposed. The overall dimensions of the antenna are) (L W × 45 28 × mm 2. A rectangular 'C' shaped slot is cut on the radiating element and rectangular open loop resonators are embedded in the ground section of the antenna structure. The antenna operates in 2.45 GHz (IEEE 802.15.1-Bluetooth), 3.5GHz (IEEE 802.16-WiMAX), 5.2GHz and 5.8GHz (IEEE 802.11a-WLAN) frequencies. Taconic TLY 5 (ε r =2.2) has been used as substrate.
Compact Integrated Bluetooth UWB Antenna with Quadruple Bandnotched Characteristics
International Journal of Electrical and Computer Engineering (IJECE), 2015
In this paper,a compact printed dualband antenna for Bluetooth and UWB applications with WiMax(3.3-3.7 GHz), C-band satellite downlink(3.7-4.2GHz), WLAN(5.15-5.825GHz) and DSRC(5.5-5.925GHz) bandnotched characteristics is proposed and investigated. By etching two half-wavelength L-shaped slots in the radiating patch and an inverted U-shaped slot in the microstrip feedline quadruple bandnotched characteristics is obtained. Further, by embedding quarter wavelength parasitic strip at two edges of U-shaped radiating patch dualband characteristics with desired bandwidth is obtained. the proposed antenna is designed and fabricated on a FR4 substrate of dimensions 24mm X 35mm that operates over a 2.4-11GHz with S11<-10dB except over notch bands of 3.3-3.7GHz, 3.7-4.2GHz,5.15-5.625GHz and 5.625-6GHz. Directional pattern in E-plane and nearly omnidirectional pattern in H-plane are observed over a UWB band except at desired bandnotched freqencies. Less variation in group delay and pulse de...
Printed Fork shaped Monopole Antenna for UWB Applications with Band Rejection Characteristics
This article describes the design of a band rejection characteristics using fork shaped patch antenna for Ultra-wide-band (UWB) applications. Two bands WiMAX (3.3-3.7 GHz) and C-band satellite communications (3.7-4.2 GHz) is filtered out by inserting two asymmetrical L-shaped in each arm of the tuning fork shaped patch. The 50 ohm Microstrip feed-line is used to excite the antenna. The Ansoft's HFSS V.13.0 electromagnetic suite is used to simulate the suggested antenna using low cost glass epoxy FR-4 substrate having relative permittivity 4.4 and loss tangent 0.02. The suggested antenna shows gain at satisfactory level with omnidirectional radiation characteristics over the entire UWB band.
Design of Band-Rejected UWB Planar Antenna with Integrated Bluetooth Band
IET Microwaves, Antennas & Propagation, 2016
In this article, a compact monopole antenna along with Bluetooth band and a band notched characteristic for UWB applications is designed. The antenna consists of a triangular shaped patch, an L-shaped ground plane and a tapered microstrip feedline to obtain ultra wideband operation. An additional resonance is excited for the Bluetooth band (2.4-2.48 GHz) by attaching an L-shaped strip to the radiator. Further, a C-shaped slit is etched in the radiator to restrict electromagnetic interference at IEEE INSAT/Super-Extended C-band from 6.7-7.1 GHz. The size of the antenna is only 13×24×1.6 mm 3. A prototype of the proposed design is fabricated to validate the performance of the antenna. Measured results show that the antenna successfully operates over Bluetooth and entire UWB bands except the IEEE INSAT/Super-Extended C-band. A large bandwidth of 21.4 GHz from 3.1 to 24.5 GHz for UWB band is obtained. Current distribution on the antenna is used to develop design equations, and analyzed the effect of L-shaped strip and C-shaped slit on the antenna operation. The simple structure and small size of the antenna makes it suitable for most of the wireless communication systems.
IEEE Access
A compact asymmetric coplanar strip (ACS)-fed monopole antenna is presented, which operates within the Bluetooth and UWB frequency bands with the capability to simultaneously reject the lower WLAN interfering band. The antenna consists of an inverted right triangle patch monopole loaded by open-ended L-shaped slits not only to produce the additional 2.4 GHz passband to the UWB design but also to achieve stopband characteristics around 5.2 GHz. The conceptual equivalent circuit model as well as characteristic mode analyses are carried out in the design evolution process. The proposed antenna has an overall size of only 20 mm × 10 mm, having the smallest area among the so far developed designs, which can be easily integrated within any wireless gadgets. A prototype is fabricated and measured to validate the design, demonstrating the predicted behavior fairly achieved by full-wave analysis. The antenna −10 dB operating bandwidth ranges from 2.38 to 2.42 GHz and from 3.35 to 11 GHz while rejecting from 4.69 to 5.2 GHz. Unlike the unwanted stopband, where the radiation characteristics are adequately deteriorated, the proposed antenna fairly provides stable omni-directional radiation patterns in the H-plane, and has an average efficiency (gain) of 87.3% (2.6 dBi) in the desired passband. As far as the antenna transient behavior is concerned, an adequate measured (simulated) system fidelity factor of 0.7 (0.68) is achieved for the transmission of impulse-type UWB signals in the face-to-face configuration. INDEX TERMS ACS-fed, compact, monopole, Bluetooth, UWB, band-notch. I. INTRODUCTION With the exponential pace of technology, portable wireless gadgets with low power consumption, large bandwidth, and more importantly, small dimensions are very attractive in today's competitive market. The two widely-used license-free Bluetooth (2.4-2.48 GHz, 40 channels with 2 MHz spacing) and UWB (3.1-10.6 GHz, over 100% fractional bandwidth) technologies are key enablers for mobile and short-range communications [1], [2]. The evolution of such systems The associate editor coordinating the review of this manuscript and approving it for publication was Sotirios Goudos .