A Wideband Dual Circularly Polarized Full-Corporate Waveguide Array Antenna Fed by Triple-Resonant Cavities

Wu, Jie; Cheng, Yu Jian; Wang, Hong Bin; Zhong, Yi; Ma, Da; Yang, Fan

doi:10.1109/tap.2016.2631953

Cited by 72 publications

(18 citation statements)

References 23 publications

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“…This antenna cannot compete in terms of lightness and weight with microstrip antennas, but it is a more suitable solution in the millimeter-wave band where dielectric losses are critical. Compared to other full-metal antennas, as the one published in [16], this contribution is much more compact and has a simpler and less voluminous corporate-feed network. Precisely by using fewer transitions and layers, 4 in total instead of 7, it is possible to achieve better antenna efficiency.…”

Section: Antenna Measurementsmentioning

confidence: 99%

Dual Circularly Polarized Aperture Array Antenna in Gap Waveguide for High-Efficiency Ka-Band Satellite Communications

Ferrando-Rocher

Herranz-Herruzo

Valero‐Nogueira

et al. 2020

IEEE Open J. Antennas Propag.

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A novel fully metallic Ka-band dual circularly polarized antenna array is presented in this contribution. It consists of 64 circular apertures (8×8) and it is implemented in gap waveguide technology. The antenna includes 4 layers, which are completely metallic, leading to a highly efficient performance. The experimental results confirm reflection coefficient values lower than −10 dB from 29 GHz to 31 GHz as well as stable radiation patterns throughout the whole frequency range. Good average axial ratio (AR) of 1.5 dB has been measured in the working band for both polarizations. Measured directivity is 28 dBi and antenna efficiency keeps close to 80%.

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Section: Antenna Measurementsmentioning

confidence: 99%

Dual Circularly Polarized Aperture Array Antenna in Gap Waveguide for High-Efficiency Ka-Band Satellite Communications

Ferrando-Rocher

Herranz-Herruzo

Valero‐Nogueira

et al. 2020

IEEE Open J. Antennas Propag.

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“…The polarization diversity based techniques are used to achieve ∼ 35-40dB interport isolation for linearlypolarized (LP) antennas [18]- [20] and ∼ 20dB for circularlypolarized (CP) antennas [15]- [17]. Moreover, multilayered printed antennas with hybrid feeding structures can provide ∼ 15-20 dB improvement in T x -R x isolation [25].…”

Section: Introductionmentioning

confidence: 99%

Single Layer, Differentially Driven, LHCP Antenna With Improved Isolation for Full Duplex Wireless Applications

et al. 2019

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This paper presents a unidirectional, left handed circularly polarized (LHCP), single layered antenna array with improved interport isolation for simultaneous transmit and receive (STAR) or in-band full duplex (IBFD) wireless applications. The proposed IBFD antenna is comprised of three identical and sequentially rotated LHCP radiating elements where two R x patches are symmetrically placed with respect to a single T x patch. The symmetry of proposed antenna structure results in same amount of coupling or self interference (SI) from T x element and differentially driven R x patches achieve effective suppression of resulting SI to obtain improved T x-R x interport isolation required for STAR applications. The deployed feed network for differential-driven R x operation is composed of a simple 3dB/180 • rat-race coupler (ring hybrid coupler) with nice in-band amplitude and out-of-phase balance characteristics. The implemented single layer, compact (antenna elements and feeding network etched on single-layered PCB) antenna array achieves 10dB return-loss bandwidth ≥ 75MHz for both T x and R x ports. The prototype achieves ≥ 47dB interport isolation in 75MHz bandwidth and 3 dB axial ratio beam-width is ∼ 60 • for implemented antenna. INDEX TERMS Left hand circular polarized (LHCP) antenna, improved interport isolation, in-band full duplex, self interference cancellation (SIC), 3dB/180 • ring hybrid coupler.

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“…Various antenna designs with high interport isolation have been reported in literature which are based on different SIC techniques to improve the interport isolation . The employed isolation techniques include spatial isolation (physical separation of antenna elements), the polarization diversity isolation, reduction in coupling through near field SIC and using different modes for isolation . The spatial isolation techniques are used for bistatic antenna (separate antenna for T x and R x modes) configurations.…”

Section: Introductionmentioning

confidence: 99%

A compact proximity‐fed 2.4 GHz monostatic antenna with wide‐band SIC characteristics for in‐band full duplex applications

Nawaz

Niazi

2019

Int J RF Microw Comput Aided Eng

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This article presents a dual polarized, proximity-fed monostatic patch antenna (single radiator for both transmit and receive modes) with improved interport isolation for 2.4 GHz in-band full duplex (IBFD) applications. The proximityfed radiating patch offers comparatively wider impedance bandwidth for presented design. Very nice self-interference cancelation (SIC) levels for intended impedance bandwidth have been achieved through differential receive (R x ) mode configuration. The differential R x mode based on 180 ring hybrid coupler acts as a signal inversion mechanism for effective suppression or cancelation of in-band self-interference (SI) that is, the leakage from transmit port. The implemented prototype of proposed antenna achieves ≥87 dB peak isolation for dual polarized IBFD operation. Moreover, the recorded interport isolation for validation model ≥60 dB within 10 dB-return loss bandwidth of 90 MHz (2.36-2.45 GHz). The measured radiation characteristics of implemented antenna demonstrate nice gain and low cross-polarization levels for both transmit (T x ) and receive (R x ) modes. The dimensions of implemented antenna are 70 × 75 × 4.8 mm 3 . The novelty of this work is wide-band SIC performance for monostatic antenna configuration with compact structure of presented design. K E Y W O R D SDC interport isolation, differential feeding, dual polarization, full duplex antenna, high interport isolation, self-interference cancelation (SIC)

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A Wideband Dual Circularly Polarized Full-Corporate Waveguide Array Antenna Fed by Triple-Resonant Cavities

Cited by 72 publications

References 23 publications

Dual Circularly Polarized Aperture Array Antenna in Gap Waveguide for High-Efficiency Ka-Band Satellite Communications

Dual Circularly Polarized Aperture Array Antenna in Gap Waveguide for High-Efficiency Ka-Band Satellite Communications

Single Layer, Differentially Driven, LHCP Antenna With Improved Isolation for Full Duplex Wireless Applications

A compact proximity‐fed 2.4 GHz monostatic antenna with wide‐band SIC characteristics for in‐band full duplex applications

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