Pin-Loaded Circularly-Polarized Patch Antennas With Wide 3-dB Axial Ratio Beamwidth

Zhang, Xiao; Li, Zhu; Liu, Neng‐Wu

doi:10.1109/tap.2016.2632728

Cited by 92 publications

(57 citation statements)

References 19 publications

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“…The two inductances, L p1 and L p2 , represent the corresponding equivalent inductances of Via 1 and Via 2. According to the work in, the inductance of a stand‐alone via can be derived as below,

L_{p (1, 2)} = \frac{{normalμ}_{0}}{2 π} true[h \ln true(\frac{h + \sqrt{h^{2} + r^{2}}}{r} true) - \sqrt{h^{2} + r^{2}} + \frac{h}{4} + r true]

…”

Section: Operation Principlementioning

confidence: 99%

“…The application of loading grounding‐vias was initially introduced for tuning the resonant frequency of patch antennas . This technique was then applied in filtering‐antenna system, low cross‐polarized antenna, and gain‐enhanced antenna . Nevertheless, to the best of authors' knowledge, the application of asymmetrically loaded grounding‐vias in diplexer‐antenna systems has not yet been reported.…”

Section: Introductionmentioning

confidence: 99%

“…10 This technique was then applied in filtering-antenna system, 11 low cross-polarized antenna, 12 and gain-enhanced antenna. 13 Nevertheless, to the best of authors' knowledge, the application of asymmetrically loaded grounding-vias in diplexer-antenna systems has not yet been reported. This article demonstrates the application of this technique in tuning the frequency response of the self-diplexed antenna system, and also enhancing the isolation between the transmitting (Tx) and receiving (Rx) antennas.…”

Section: Introductionmentioning

confidence: 99%

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Self-diplexed antenna based on loading asymmetric grounding-vias

Liang

Huang

et al. 2018

Int J RF Microw Comput Aided Eng

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This article presents a simple and efficient method for the design of a self‐diplexed antenna based on loading asymmetric grounding‐vias. The structure consists of two antenna elements loaded with two asymmetric grounding‐vias, specifying the uplink and downlink operation frequencies. By choosing the appropriate positions of the two grounding‐vias, high isolation between the two antennas can be achieved. To validate the feasibility of the proposed structure, two self‐diplexed antennas with different operational frequencies have been fabricated and tested. Experimental results verify the multi‐functionalities of the proposed compact structure in terms of high isolation and low cross‐polarization discrimination.

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L_{p (1, 2)} = \frac{{normalμ}_{0}}{2 π} true[h \ln true(\frac{h + \sqrt{h^{2} + r^{2}}}{r} true) - \sqrt{h^{2} + r^{2}} + \frac{h}{4} + r true]

…”

Section: Operation Principlementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Self-diplexed antenna based on loading asymmetric grounding-vias

Liang

Huang

et al. 2018

Int J RF Microw Comput Aided Eng

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“…By arranging parallel dipoles in a rectangular contour properly, the antenna can obtain a broad ARBW of approximately 131° . Also, based on the same principle, a CP patch antenna using a pin‐loaded method was reported to achieve a comparable ARBW . In Ref.…”

Section: Introductionmentioning

confidence: 99%

“…3,5 Also, based on the same principle, a CP patch antenna using a pin-loaded method was reported to achieve a comparable ARBW. 6 In Ref. 4, a CP antenna for millimeter-wave applications is presented.…”

Section: Introductionmentioning

confidence: 99%

Ultra‐high‐frequency wideband circularly polarized crossed‐dipole antenna with wide axial‐ratio beamwidths for SATCOM applications

Yan

Liu

et al. 2019

Micro & Optical Tech Letters

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In this study, an ultra‐high‐frequency (UHF) wideband circularly polarized (CP) crossed‐dipole antenna with wide axial‐ratio beamwidth (ARBW) is proposed for SATCOM applications. The antenna is composed of two pairs of dipoles with umbrella‐shaped arms, and they are fed by a feeding network to generate CP radiation. Two pairs of parasitic patches are introduced symmetrically between the dipole arms and the ground plane. Due to coupling of the dipoles, currents can be induced on to the metal patches, which can not only decrease the antenna volume by increasing the current path of the dipole arms, but also additional radiation can be provided to enhance the ARBW. A prototype of proposed antenna was fabricated and measured. The measured results indicate that it operates at the UHF band ranging from 280 to 420 MHz, with a –10‐dB impedance bandwidth of 40.5% and a 3‐dB AR bandwidth of 42%. Furthermore, the antenna exhibits a 3‐dB ARBW of more than 190°within a wide operating band of 23.1%.

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Circularly polarized designs of modified isosceles triangular microstrip antennas

Deshmukh

Ray

2020

Engineering Reports

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The modified designs of different isosceles triangular microstrip antennas realized by overlapping two isosceles patches, are proposed for circularly polarized response. An offset distance between the two overlapped patches yield optimum spacing in between the orthogonal modes of the composite patch, to give circular polarization. Proposed configuration is investigated for angle increasing from 50 • to 100 •. An optimum response in terms of the bandwidth (BW) is obtained in 50 • modified isosceles patch. Here, input impedance and axial ratio (AR) BW of 646 MHz (52%) and 76 MHz (6.12%), respectively, is obtained. As an additional design feature, proposed configuration shows variation in the center frequency of AR BW against increasing isosceles angle and the offset distance. Proposed designs exhibit broadside radiation pattern with a gain of above 8 dBi, with a good agreement between the simulated and measured results. A new simpler design for circular polarized response supported with detailed design methodology are the new technical contributions in the proposed work.

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Pin-Loaded Circularly-Polarized Patch Antennas With Wide 3-dB Axial Ratio Beamwidth

Cited by 92 publications

References 19 publications

Self-diplexed antenna based on loading asymmetric grounding-vias

Self-diplexed antenna based on loading asymmetric grounding-vias

Ultra‐high‐frequency wideband circularly polarized crossed‐dipole antenna with wide axial‐ratio beamwidths for SATCOM applications

Circularly polarized designs of modified isosceles triangular microstrip antennas

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