Novel Frequency- and Pattern-Reconfigurable Rhombic Patch Antenna With Switchable Polarization

Selvam, Yogeshwari Panneer; Elumalai, Lavanya; Kanagasabai, Malathi; Subbaraj, Sangeetha; Kingsly, Saffrine

doi:10.1109/lawp.2017.2660069

Cited by 83 publications

(27 citation statements)

References 14 publications

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“…Three BAR64‐03W PIN diodes with 2.1 Ω series resistance, 1.8 nH inductance during the ON state and reverse resistance of 3 kΩ, shunt capacitance of 0.17 pF in the OFF state are used to enable reconfiguration. The RF signal and the DC lines are isolated using 20 pF DC blocking capacitor and 33 nH RF choke inductor . The overall size of the proposed reconfigurable filter is 30 × 18 mm.…”

Section: Evolution and Design Detailsmentioning

confidence: 99%

“…The RF signal and the DC lines are isolated using 20 pF DC blocking capacitor and 33 nH RF choke inductor. [22][23][24] The overall size of the proposed reconfigurable filter is 30 3 18 mm. The proposed work shows 56% size reduction when compared to the metamaterial based microwave device 19 designed for the same lower operating band.…”

Section: Evo Lut Io N and D Es I Gn Det Ai Lsmentioning

confidence: 99%

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Multi-band reconfigurable microwave filter using dual concentric resonators

Kingsly

Kanagasabai

Alsath

et al. 2018

Int J RF Microw Comput Aided Eng

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This article presents the design and testing of a novel frequency reconfigurable microwave filter. The filter structure is composed of an all stop resonator coupled with C‐ and E‐shaped parasitic resonators. PIN diodes are located at suitable positions to achieve multi‐band reconfiguration from 1.2 to 3.2 GHz making the filter suitable for multiple wireless communication systems. The frequency and bandwidth of the filter are governed by the length of the resonators and coupling between the resonators and the transmission line, respectively. A sharp rejection of −30 dB is observed between the passbands. The proposed filter offers 56% size reduction with flat group delay performance. The prototype filter is fabricated and the simulation results are validated using experimental measurements. The measurement results show good agreement with the simulation results.

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Section: Evolution and Design Detailsmentioning

confidence: 99%

Section: Evo Lut Io N and D Es I Gn Det Ai Lsmentioning

confidence: 99%

Multi-band reconfigurable microwave filter using dual concentric resonators

Kingsly

Kanagasabai

Alsath

et al. 2018

Int J RF Microw Comput Aided Eng

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“…Planar parasitic array in [9] achieved 360° beam coverage at angles of around 60° in the azimuth plane at two different frequencies at 2.38 and 2.68 GHz. Two capacitive‐coupled wings around a rhombic antenna in [10] and PIN diode switching in [11] achieved beam tilt at angles of 30° to either left or right. A pattern reconfigurable Yagi Uda antenna in [12] designed for vehicular applications gives four‐beam directive radiation pattern.…”

Section: Introductionmentioning

confidence: 99%

Investigation on non‐linear aspects of pattern reconfigurable hexagon shaped planar loop antenna

Pant

Kumar

Gupta³

et al. 2019

IET Microwaves, Antennas & Propagation

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A planar electronically pattern‐reconfigurable antenna based on Alford‐loop‐type hexagon shaped radiator is presented. The antenna consists of three half‐wavelength dipole radiators arranged on both sides of an FR‐4 substrate. It has an overall profile of 0.47λ0 × 0.47λ0 × 0.012λ0 (λ0 free space wavelength at 2.35 GHz). The bottom ground layer is tapered to allow impedance matching. Three PIN diodes are used to control the direction of radiation pattern by switching them in a controlled manner. Thus the antenna provides reconfigurable radiation patterns in six spatial directions with by switching three PIN diodes in ON and OFF states. The antenna has a measured impedance bandwidth of 2.35–to 2.45 GHz (4.16% fractional Bandwidth) and steers the beam in six directions 0°, 60°, 120°, 180°, 240°, and 300° covering the entire azimuthal plane. The antenna offers a maximum measured gain of 2.66 dB with simulated efficiency over 75%. Further, an investigation of non‐linear effects due to PIN diodes shows that the antenna operates in the linear region up to an input power level of 27 dBm where the strength of received spurious harmonic and intermodulation signals is negligible. It makes the antenna suitable for indoor and short‐range communication applications in the 2.4 GHz band.

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“…Ultrawideband (UWB) antennas are necessary for integrating other existing wireless networking technologies with impulse radio-UWB (IR-UWB) systems. Different types of radio frequency (RF) switches, such as gallium arsenide (GaAs) field effect transistor switches, micro electro-mechanical systems (MEMS) switches, positive-intrinsic-negative (PIN) diodes, and varactor diodes, have been used to enable frequency reconfiguration [2][3][4]. Among these components, the PIN diode is most preferred in such applications due to its fast switching time, low cost, and easy fabrication.…”

Section: Introductionmentioning

confidence: 99%

“…Many researchers have discussed using PIN diodes to enable reconfigurability, including frequency switching [2,5,6] and radiation pattern switching [7][8][9] with PIN diodes. Multiple reconfigurability of bandwidth switching, radiation pattern switching, and polarization switching are realized by PIN diodes in [4]. Generally, antenna radiation patterns are studied at one specific frequency in the research of reconfigurable antennas, and when referring to radiation patterns, the frequency domain is commonly considered [10].…”

Section: Introductionmentioning

confidence: 99%

Time Domain Performance of Reconfigurable Filter Antenna for IR-UWB, WLAN, and WiMAX Applications

Zhang

Pan

2019

Electronics

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A novel reconfigurable filter antenna with three ports for three dependent switchable states for impulse radio-ultrawideband (IR-UWB)/wireless local area network (WLAN)/worldwide interoperability for microwave access (WiMAX) applications is presented in this paper. Three positive-intrinsic-negative diodes, controlled by direct current, are employed to realize frequency reconfiguration of one ultra-wideband state and two narrowband states (2.4 GHz and 3.5 GHz). The time domain characteristic of the proposed antenna in the ultra-wideband state is studied, because of the features of the IR-UWB system. The time domain analysis shows that the reconfigurable filtering antenna in the wideband state performs similarly to the original UWB antenna. The compact size, low cost, and expanded reconfigurable filtering features make it suitable for IR-UWB systems that are integrated with WLAN/WiMAX communications.

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Novel Frequency- and Pattern-Reconfigurable Rhombic Patch Antenna With Switchable Polarization

Cited by 83 publications

References 14 publications

Multi-band reconfigurable microwave filter using dual concentric resonators

Multi-band reconfigurable microwave filter using dual concentric resonators

Investigation on non‐linear aspects of pattern reconfigurable hexagon shaped planar loop antenna

Time Domain Performance of Reconfigurable Filter Antenna for IR-UWB, WLAN, and WiMAX Applications

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