Integrated Filtering Microstrip Duplex Antenna Array with High Isolation

Lin, Xian‐Jing; Xie, Ze‐Ming; Zhang, Pei-Sheng

doi:10.1155/2017/4127943

Cited by 9 publications

(3 citation statements)

References 10 publications

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“…It is orthogonally polarized and reradiates the power to minimize the original field around the Rx antenna. Furthermore, in [26], a power distributing duplex network is employed to obtain high isolation of about 45 dB between the two input ports. As for the one presented in [27], the electromagnetic bandgap (EBG) structure is inserted between two closely located monopole antennas to improve isolation.…”

Section: Introductionmentioning

confidence: 99%

MM-Wave High Isolated Dual Polarized Dielectric Resonator Antenna for In-Band Full-Duplex Systems

et al. 2023

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A novel high-isolation dual-polarized in-band full-duplex (IBFD) dielectric resonator antenna (DRA) for satellite communications using a decoupling structure is proposed. Good isolation between transmit and receive ports is achieved by placing two identical linearly polarized resonators orthogonal to each other. Each resonator consists of a main rectangular dielectric resonator of the dielectric constant of 10 and is loaded by a thin dielectric slab of lower permittivity of 5 to broaden the matching bandwidth further. The isolation is further improved by loading an absorber and etching several slots in the ground plane. Finally, the proposed DRA is fabricated and measured to validate the concepts. Measurement results show high isolation of more than 50 dB over the desired operating bandwidth from 23.04 GHz to 24.08 GHz (ka-band) with a peak gain of about 8.93 dBi and 8.09 dBi for Port 1 and Port 2, respectively. In addition, the proposed IBFD DRA provides 11.87 GHz and 4.84 GHz isolation bandwidths over 25 dB and 30 dB, respectively, making it a potential candidate for mm-wave terrestrial applications.INDEX TERMS Dielectric resonator antenna, dual-polarization, in-band full-duplex.

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Section: Introductionmentioning

confidence: 99%

MM-Wave High Isolated Dual Polarized Dielectric Resonator Antenna for In-Band Full-Duplex Systems

et al. 2023

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“…Another way is to use a circulator to share one antenna for both transmitting and receiving [17,18]. Isolators, such as the parasitic elements, metamaterial inspired isolators, and electromagnetic bandgap structures, have also been studied in previous research [19][20][21][22]. These passive approaches can be easily realized, but the isolation performance is normally limited, especially when the interference channel varies in time.…”

Section: Introductionmentioning

confidence: 99%

Self-Interference Cancellation: A Comprehensive Review from Circuits and Fields Perspectives

Zhang¹,

He²,

Li³

et al. 2022

Electronics

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Increased demand for higher spectrum efficiency, especially in the space-limited chip, base station, and vehicle environments, has spawned the development of full-duplex communications, which enable the transmitting and receiving to occur simultaneously at the same frequency. The key challenge in this full-duplex communication paradigm is to reduce the self-interference as much as possible, ideally, down to the noise floor. This paper provides a comprehensive review of the self-interference cancellation (SIC) techniques for co-located communication systems from a circuits and fields perspective. The self-interference occurs when the transmitting antenna and the receiving antenna are co-located, which significantly degrade the system performance of the receiver, in terms of the receiver desensitization, signal masking, or even damage of hardwares. By introducing the SIC techniques, the self-interference can be suppressed and the weak desired signal from the remote transmitter can be recovered. This, therefore, enables the full-duplex communications to come into the picture. The SIC techniques are classified into two main categories: the traditional circuit-domain SICs and the novel field-domain SICs, according to the method of how to rebuild and subtract the self-interference signal. In this review paper, the field-domain SIC method is systematically summarized for the first time, including the theoretical analysis and the application remarks. Some typical SIC approaches are presented and the future works are outlooked.

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“…In Reference , a multimode resonator is used as the synthesis network of the filtering duplex antenna to realize high order filtering performance. In Reference , two bandstop filters and a 180° phase shift power divider are employed to constitute a feeding network of the filtering duplex antenna array, forming high ports isolation. However, they are essentially the structure of antenna cascaded with duplex, the integration is not enough.…”

Section: Introductionmentioning

confidence: 99%

Integrated filtering duplex patch antenna with small frequency ratio and high isolation

Lin

Zhang

Xie

2019

Micro & Optical Tech Letters

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An integrated filtering duplex antenna with small frequency ratio and high isolation is proposed in this article. First, a small transmitter‐receiver frequency ratio of stacked patch antenna is realized by soldering short circuit chips to the driven patch. Then, the asymmetric transmission zero technology is employed in the sets of dual‐mode resonators to realize high port‐to‐port isolation. Moreover, the ports coupling mode of the dual‐mode resonator is changed to achieve further Tx‐Rx isolation. For demonstration, the proposed antenna is fabricated and experimentally characterized in WCDMA band. The measured results show that it can mainly operate over the uplink and downlink operation band of WCDMA with an isolation level better than 32 dB, and the frequency interval (Δf = (f r − f t)) is only 0.09 times of the central frequency ((f r + f t)/2).

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Integrated Filtering Microstrip Duplex Antenna Array with High Isolation

Cited by 9 publications

References 10 publications

MM-Wave High Isolated Dual Polarized Dielectric Resonator Antenna for In-Band Full-Duplex Systems

MM-Wave High Isolated Dual Polarized Dielectric Resonator Antenna for In-Band Full-Duplex Systems

Self-Interference Cancellation: A Comprehensive Review from Circuits and Fields Perspectives

Integrated filtering duplex patch antenna with small frequency ratio and high isolation

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