Wideband Dual-Polarised Tapered Slot Antenna With Compact Structure for Full-Duplex Applications

IF 1.3 4区计算机科学 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC

Iet Microwaves Antennas & Propagation Pub Date : 2026-06-19 DOI:10.1049/mia2.70105

Fan Zhang, Yue-Ying Zhang, Rui Wang, Pan Lu

引用次数: 0

Abstract

A compact, wideband dual-polarised antenna with high isolation is presented for in-band full-duplex applications. In order to achieve high isolation, an orthogonal tapered slot antenna (TSA) with symmetric configuration is designed and investigated to realize the proposed aperture-level coupling cancelation (ALCC) concept. An asymmetric top-loading patch is employed to lower the TSA's profile, resulting in a more compact structure and improved impedance matching. The proposed design with electrical dimensions of Φ 0.49λ_min × 0.29λ_min (λ_min is the free-space wavelength at the lowest operational frequency) is fabricated, measured and analysed. The measurement results reveal that the proposed antenna exhibits a 10 dB return loss bandwidth of 73.5% (2.52–5.45 GHz), an isolation of ≥ 45.6 dB over the bandwidth from 3.4 to 5.45 GHz (46.3%) and peak isolation of 70.3 dB at 4.7 GHz.

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结构紧凑的全双工宽带双极化锥形槽天线

提出了一种用于带内全双工应用的紧凑型宽带高隔离双极化天线。为了实现高隔离度，设计并研究了对称结构的正交锥形槽天线（TSA），以实现所提出的孔径级耦合消除（ALCC）概念。采用不对称的顶部加载贴片来降低TSA的轮廓，从而使结构更紧凑，并改善了阻抗匹配。提出了电尺寸为Φ 0.49λmin × 0.29λmin （λmin为最低工作频率下的自由空间波长）的设计方案，并对其进行了测量和分析。测量结果表明，该天线的10 dB回波损耗带宽为73.5% (2.52 ~ 5.45 GHz)，在3.4 ~ 5.45 GHz（46.3%）带宽范围内的隔离度≥45.6 dB，在4.7 GHz频段的峰值隔离度为70.3 dB。

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来源期刊

Iet Microwaves Antennas & Propagation 工程技术-电信学

CiteScore

4.30

自引率

5.90%

发文量

109

审稿时长

7 months

期刊介绍： Topics include, but are not limited to: Microwave circuits including RF, microwave and millimetre-wave amplifiers, oscillators, switches, mixers and other components implemented in monolithic, hybrid, multi-chip module and other technologies. Papers on passive components may describe transmission-line and waveguide components, including filters, multiplexers, resonators, ferrite and garnet devices. For applications, papers can describe microwave sub-systems for use in communications, radar, aerospace, instrumentation, industrial and medical applications. Microwave linear and non-linear measurement techniques. Antenna topics including designed and prototyped antennas for operation at all frequencies; multiband antennas, antenna measurement techniques and systems, antenna analysis and design, aperture antenna arrays, adaptive antennas, printed and wire antennas, microstrip, reconfigurable, conformal and integrated antennas. Computational electromagnetics and synthesis of antenna structures including phased arrays and antenna design algorithms. Radiowave propagation at all frequencies and environments. Current Special Issue. Call for papers: Metrology for 5G Technologies - https://digital-library.theiet.org/files/IET_MAP_CFP_M5GT_SI2.pdf