ragini sharma - Academia.edu (original) (raw)
Papers by ragini sharma
2016 8th International Conference on Computational Intelligence and Communication Networks (CICN)
This paper presents a successful designing of rectangular patch antenna with rectangular slit for... more This paper presents a successful designing of rectangular patch antenna with rectangular slit for microwave applications. Rectangular slits are used to miniaturization of patch antenna and enhancement of characteristics of patch antenna. This design offer proper impedance matching. This antenna has been simulated at 1.77GHz frequency using CST software. This design has shown return loss of -20.849dB and gain of 2.947dB. The proposed antenna design has good directional properties (directivity 6.002dBi) and high radiation efficiency.
This paper presents a miniaturized inverted fork patch antenna with ground plane. This design is ... more This paper presents a miniaturized inverted fork patch antenna with ground plane. This design is a modified design of (1). This design offer proper impedance matching of patch antenna with tremendously increased bandwidth (1 GHz). It reduces return loss of antenna and increases the gain of antenna. This antenna has been simulated at 2.67GHz frequency using CST software. This modified design reduces back lobe radiations of patch antenna hence increases the directivity of antenna. The proposed antenna design has good directional properties and also miniaturize patch antenna so it can be widely used in microwave applications.
Recent Trends in Communication and Electronics
Advances in Wireless Technologies and Telecommunication
This chapter presents the various designing methods and challenges associated with wearable anten... more This chapter presents the various designing methods and challenges associated with wearable antennas, selecting the designing material, various fabrication techniques, and implementation methods on the fabric. Wearable antennas have gained popularity in recent years due to their unmatched properties and unique features. The wearable antenna is capable of providing effective wireless communication, tracking, and sensing. These types of antenna need to be conformal when used on numerous parts of the human body, and they need to be lightweight, flexible, and must be implemented easily on the flexible material. These antennas must be capable of operating with maximum efficiency on the human body. These requirements make the wearable antenna design challenging. They also need to be compact in size, better in coupling with the body, and must be capable of handling issues associated with the device when the target is moving.
International Conference on Intelligent Computing and Smart Communication 2019
A SIW leaky wave horn antenna has been simulated for multiband application. Slots of uneven struc... more A SIW leaky wave horn antenna has been simulated for multiband application. Slots of uneven structures are imprinted at the upper side of the horn to behave antenna as a leaky wave antenna. This proposed geometry of leaky wave antenna efficiently scanned end-fire pattern from broadside pattern with a very high gain. Periodic nonuniform slot causes leakage current since there is interruption of current flow on the upper wall. Fundamentally, there are three propagation modes in the geometry. The antenna is working in the frequency range from 5.9 to 12 GHz and has an application in Ku-band. The proposed SIW Horn antenna is simulated using CST MW studio Software. FR-4 Lossy material is used for simulation of presented SIW horn antenna whose Dielectric constant and loss tangent are 4.3 and 0.2, respectively.
International Journal of Engineering & Technology
In this paper a slotted microstrip patch antenna has been designed that works for two frequencies... more In this paper a slotted microstrip patch antenna has been designed that works for two frequencies 1.42GHz and 2.65GHz. Since a microstrip patch antenna works only on one resonant frequency so converting that into a multiband patch antenna would enhance the bandwidth and also utilizes the multiple frequencies of operation. This multiband slotted patch antenna is fabricated on FR4 lossy dielectric substrate whose dielectric constant is 4.3 and height is 1.6mm. The length and width of patch are taken as 51.16mm and 39.86mm respectively. we cut out the slots so that the patch antenna works at multiple frequencies. Another advantage of presented design is it reduced the size of antenna actually required for 1.42GHz frequency. Simulation and analysis of slotted patch antenna is done by CST software. Simulation and fabrication results show that the presented antenna design characteristics meet with the standard characteristics of antenna.
Journal of Power Electronics Power Systems, Jan 4, 2013
This paper proposes a design of a patch antenna by using pentagonal shaped metamaterial for Elect... more This paper proposes a design of a patch antenna by using pentagonal shaped metamaterial for Electromagnetic interference sensor. Pentagonal shaped metamaterial is used to increase bandwidth of patch antenna. Metamaterial possesses properties such as negative permittivity and negative permeability. It reduces return loss of antenna and increases the directivity. Two identical rectangular patch antennas have designed for transmitting and receiving purpose. This proposed antenna has been simulated at 2GHz frequency by using CST software. Transmitting patch antenna is connected to signal generator and receiving patch antenna is connected to spectrum analyzer. All the variation due to any interference is measured by Spectrum analyzer .
Wireless Communication, 2012
This paper proposed a patch antenna incorporated with wheel shaped metamaterial structure for mic... more This paper proposed a patch antenna incorporated with wheel shaped metamaterial structure for microwave sensors. Metamaterial exhibits unconventional properties such as negative permeability and negative permittivity. Metamaterials obtained their properties from their structure rather than composition. Metamaterial is used for proper impedance matching of patch antenna. It reduces return loss of antenna and increases the gain of antenna. This antenna has been simulated at 2.1GHz frequency (R-Band) using CST software. Incorporation of metamaterial with patch antenna reduces back lobe radiations of patch antenna hence increases the directivity of antenna. The proposed antenna design has good agreement with its directional properties and also miniaturize patch antenna so it can be used in microwave sensors In previous work different designs of metamaterial have been presented. Most of them are designed for optical frequencies. In this paper a new structure of metamaterial is designed a...
2016 8th International Conference on Computational Intelligence and Communication Networks (CICN)
This paper presents a successful designing of rectangular patch antenna with rectangular slit for... more This paper presents a successful designing of rectangular patch antenna with rectangular slit for microwave applications. Rectangular slits are used to miniaturization of patch antenna and enhancement of characteristics of patch antenna. This design offer proper impedance matching. This antenna has been simulated at 1.77GHz frequency using CST software. This design has shown return loss of -20.849dB and gain of 2.947dB. The proposed antenna design has good directional properties (directivity 6.002dBi) and high radiation efficiency.
This paper presents a miniaturized inverted fork patch antenna with ground plane. This design is ... more This paper presents a miniaturized inverted fork patch antenna with ground plane. This design is a modified design of (1). This design offer proper impedance matching of patch antenna with tremendously increased bandwidth (1 GHz). It reduces return loss of antenna and increases the gain of antenna. This antenna has been simulated at 2.67GHz frequency using CST software. This modified design reduces back lobe radiations of patch antenna hence increases the directivity of antenna. The proposed antenna design has good directional properties and also miniaturize patch antenna so it can be widely used in microwave applications.
Recent Trends in Communication and Electronics
Advances in Wireless Technologies and Telecommunication
This chapter presents the various designing methods and challenges associated with wearable anten... more This chapter presents the various designing methods and challenges associated with wearable antennas, selecting the designing material, various fabrication techniques, and implementation methods on the fabric. Wearable antennas have gained popularity in recent years due to their unmatched properties and unique features. The wearable antenna is capable of providing effective wireless communication, tracking, and sensing. These types of antenna need to be conformal when used on numerous parts of the human body, and they need to be lightweight, flexible, and must be implemented easily on the flexible material. These antennas must be capable of operating with maximum efficiency on the human body. These requirements make the wearable antenna design challenging. They also need to be compact in size, better in coupling with the body, and must be capable of handling issues associated with the device when the target is moving.
International Conference on Intelligent Computing and Smart Communication 2019
A SIW leaky wave horn antenna has been simulated for multiband application. Slots of uneven struc... more A SIW leaky wave horn antenna has been simulated for multiband application. Slots of uneven structures are imprinted at the upper side of the horn to behave antenna as a leaky wave antenna. This proposed geometry of leaky wave antenna efficiently scanned end-fire pattern from broadside pattern with a very high gain. Periodic nonuniform slot causes leakage current since there is interruption of current flow on the upper wall. Fundamentally, there are three propagation modes in the geometry. The antenna is working in the frequency range from 5.9 to 12 GHz and has an application in Ku-band. The proposed SIW Horn antenna is simulated using CST MW studio Software. FR-4 Lossy material is used for simulation of presented SIW horn antenna whose Dielectric constant and loss tangent are 4.3 and 0.2, respectively.
International Journal of Engineering & Technology
In this paper a slotted microstrip patch antenna has been designed that works for two frequencies... more In this paper a slotted microstrip patch antenna has been designed that works for two frequencies 1.42GHz and 2.65GHz. Since a microstrip patch antenna works only on one resonant frequency so converting that into a multiband patch antenna would enhance the bandwidth and also utilizes the multiple frequencies of operation. This multiband slotted patch antenna is fabricated on FR4 lossy dielectric substrate whose dielectric constant is 4.3 and height is 1.6mm. The length and width of patch are taken as 51.16mm and 39.86mm respectively. we cut out the slots so that the patch antenna works at multiple frequencies. Another advantage of presented design is it reduced the size of antenna actually required for 1.42GHz frequency. Simulation and analysis of slotted patch antenna is done by CST software. Simulation and fabrication results show that the presented antenna design characteristics meet with the standard characteristics of antenna.
Journal of Power Electronics Power Systems, Jan 4, 2013
This paper proposes a design of a patch antenna by using pentagonal shaped metamaterial for Elect... more This paper proposes a design of a patch antenna by using pentagonal shaped metamaterial for Electromagnetic interference sensor. Pentagonal shaped metamaterial is used to increase bandwidth of patch antenna. Metamaterial possesses properties such as negative permittivity and negative permeability. It reduces return loss of antenna and increases the directivity. Two identical rectangular patch antennas have designed for transmitting and receiving purpose. This proposed antenna has been simulated at 2GHz frequency by using CST software. Transmitting patch antenna is connected to signal generator and receiving patch antenna is connected to spectrum analyzer. All the variation due to any interference is measured by Spectrum analyzer .
Wireless Communication, 2012
This paper proposed a patch antenna incorporated with wheel shaped metamaterial structure for mic... more This paper proposed a patch antenna incorporated with wheel shaped metamaterial structure for microwave sensors. Metamaterial exhibits unconventional properties such as negative permeability and negative permittivity. Metamaterials obtained their properties from their structure rather than composition. Metamaterial is used for proper impedance matching of patch antenna. It reduces return loss of antenna and increases the gain of antenna. This antenna has been simulated at 2.1GHz frequency (R-Band) using CST software. Incorporation of metamaterial with patch antenna reduces back lobe radiations of patch antenna hence increases the directivity of antenna. The proposed antenna design has good agreement with its directional properties and also miniaturize patch antenna so it can be used in microwave sensors In previous work different designs of metamaterial have been presented. Most of them are designed for optical frequencies. In this paper a new structure of metamaterial is designed a...