Electric-Field Null Bending of a Single Dual-Port Patch Antenna for Colinear Polarization Decoupling Using Characteristic Modes Analysis

Liu, Neng‐Wu; Liang, Yu-Dong; Li, Zhu; Fu, Guang; Liu, Ying; Yun, Yu

doi:10.1109/tap.2022.3206529

Cited by 15 publications

(6 citation statements)

References 31 publications

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“…This antenna can be used for simultaneous transmission and receiver systems that require high isolation between the transmitter and receiver. Several methods are available to achieve high antenna isolation, such as near-field cancellation [22], phase orthogonality [23], and decoupling resonators [20], [24]. However, these studies differ from ours in frequency, number of multiports, PCB fabrication process, and applications.…”

Section: Introductionmentioning

confidence: 83%

D-Band 4 × 4 Multi-Feed Array Antenna-in-Package for High-Power Combining and Polarization Synthesis

Kim,

Jung,

Lee

et al. 2023

IEEE Access

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A 4 × 4 multi-feed array antenna-in-package (AiP) is presented for high-power combinations and various polarization syntheses, which operates at D-band. The multi-feed antenna element was designed considering N-number (K × K) of array antennas from the beginning. Hence, the proposed antenna can provide four input ports while achieving impedance bandwidth of 27%, port-to-port isolation higher than 10 dB, and cross-polarization discrimination (XPD) over 20 dB. In addition, the power combination and polarization synthesis can be achieved using various excitation states. A 4 × 4 antenna array from simulated results achieves a gain of up to 18.2 dBi, radiation efficiency of 81%, and XPD of over 20 dB. For verification purposes, the proposed antennas were designed with power dividers for different polarization states. An −10 dB impedance bandwidth of over 27% and a coverage of over ±60°were measured from the experiment.INDEX TERMS D-band, multi-feed, multilayer printed PCB, antenna array.

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Section: Introductionmentioning

confidence: 83%

D-Band 4 × 4 Multi-Feed Array Antenna-in-Package for High-Power Combining and Polarization Synthesis

Kim,

Jung,

Lee

et al. 2023

IEEE Access

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“…Initially, the coupled-resonator theory based on multimode antennas was proposed and developed in [50], [51] to improve their isolation to above 20 dB. Next, two out-of-phase TM 10 modes modified the excited electric field distribution inside the resonant cavity, thus achieving a small mutual coupling of less than −15 dB [52]. Recently, a work combined two modes of a single low-profile MPA [53].…”

Section: Mutual Coupling Reduction Mmrmentioning

confidence: 99%

Multimode Resonator Technique in Antennas: A Review

Li¹,

Liu

2023

Electromag. Sci.

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During the past several decades, the multimode resonator (MMR) technique has been extensively investigated and widely used, with successful exploration of a variety of high-performance patch antennas, slot antennas, dielectric resonant antennas, dipole antennas, and so on. In this review paper, we summarize the research milestones for these MMR antennas worldwide as one of the most contributive research teams in this field. First, the basic working principles of the MMR technique are clearly illustrated and studied, including mode excitation, mode suppression, impedance performance improvement, and radiation performance improvement. Next, the research topics regarding impedance performance enhancement, i.e., widebandwidth operation, multibandwidth operation, and mutual coupling reduction, based on the MMR method are intensively described. After that, the relevant works on radiation performance enhancement, i.e., high-gain, wide-beamwidth, multibeam, multipolarization, low-cross-polarization, filtering-response, and leaky-wave antennas, based on the MMR method are extensively illustrated. By using this technique, several ideas about operating frequency reallocation, electric-field null control, radiation pattern reshaping, and efficiency null generation of the antennas are proposed and demonstrated by our team for the first time. In addition, the application of the MMR technique for wireless communication systems is introduced and presented, such as implant communication, wireless power transfer, and multiple-input multiple-output communication. With these arrangements, exploration and reporting of more interesting and useful MMR design methods can be anticipated in the future.

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“…In contrast to the case of using orthogonal polarisation, obtaining good isolation will be more complicated if the same polarisation for the TX and RX must be preserved. Recently, some works on the co-linearly polarised (co-LP) IBFD antenna have been proposed [9], [10], [11], [12], [13], [14], [15], [16], [17], [18]. Utilising the decoupling resonator is a common method to improve the isolation between the TX and RX [9], [10], [11], [12].…”

Section: Introductionmentioning

confidence: 99%

“…Besides, adding coupling paths is also an effective way to enhance port isolation [13]. Moreover, bending the electric-field null [14] and superposing the different modes [15] can also help reduce the coupling between the ports. Furthermore, the reshaped higher-order mode for radiation is beneficial to the decoupling between two closely located radiating elements [16], [17].…”

Section: Introductionmentioning

confidence: 99%

Dual-Linearly Polarized Magneto-Electric Dipole Antenna for In-Band Full-Duplex Applications

Tan,

Luk

2024

IEEE Open J. Antennas Propag.

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A dual-linearly polarised (DLP) magneto-electric (ME) dipole antenna is proposed for the inband full-duplex (IBFD) application. It is formed by ME dipoles with a shared central part, giving a compact and symmetrical antenna structure. It has four isolated channels, two for dual-LP transmitting (TX) and the other two for dual-LP receiving (RX). Due to the symmetrical structure, it can provide similar radiation patterns for both the TX and RX ports. Good isolation between any two of all four ports is obtained over a wide frequency range by modifying the antenna structure without introducing any additional complex feeding structures. To validate the proposed antenna, a prototype was fabricated and measured. The measured isolation of any two of four ports is better than 20.9 dB over the wide operating frequency band from 1.90 to 2.75 GHz (36.6%). The measured realised gain in the broadside direction and the measured radiation pattern remain stable in the whole operating frequency band and are similar for the different ports.INDEX TERMS Dual-linearly polarised (DLP), in-band full-duplex (IBFD) antenna, magneto-electric (ME) dipole antenna, wideband.

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Electric-Field Null Bending of a Single Dual-Port Patch Antenna for Colinear Polarization Decoupling Using Characteristic Modes Analysis

Cited by 15 publications

References 31 publications

D-Band 4 × 4 Multi-Feed Array Antenna-in-Package for High-Power Combining and Polarization Synthesis

D-Band 4 × 4 Multi-Feed Array Antenna-in-Package for High-Power Combining and Polarization Synthesis

Multimode Resonator Technique in Antennas: A Review

Dual-Linearly Polarized Magneto-Electric Dipole Antenna for In-Band Full-Duplex Applications

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