Millimeterwave and Terahertz Waveguide-Fed Circularly Polarized Antipodal Curvedly Tapered Slot Antennas

被引：58

作者：

Liu, Yong ^{[1
]}

Lu, Hongda ^{[1
]}

Wu, Yuming ^{[1
]}

Cui, Mengmeng ^{[1
]}

Li, Bin ^{[1
]}

Zhao, Pengfei ^{[1
]}

Lv, Xin ^{[1
]}

机构：

[1] Beijing Inst Technol, Sch Informat & Elect, Beijing 100081, Peoples R China

来源：

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION | 2016年 / 64卷 / 05期

基金：

北京市自然科学基金; 中国国家自然科学基金;

关键词：

Circular polarization; silicon micromachine; tapered slot antenna (TSA); terahertz (THz) antenna; waveguide-fed antenna; VIVALDI ANTENNA; DESIGN; DETSA;

D O I：

10.1109/TAP.2016.2536174

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Antipodal curvedly tapered slot antennas (ACTSAs) with different slot profiles are investigated to achieve the optimum circular polarization performance. The profiles of the tapered slots can be determined by different curves, such as linear, exponential, and logarithmic curves. Therefore, the corresponding waveguide-fed circularly polarized (CP) antipodal linear, exponential, exponential-logarithmic tapered slot antennas (AL-, E-, EL-TSA) are designed, fabricated, and measured at Ka-band for a comprehensive study. The optimized AELTSA provides good impedance matching, gain above 10.3 dBi, side-lobe lower than -15 dB, low cross-polarization, and left-hand circularly polarized (LHCP) axial ratio (AR) lower than 3 dB, from 28 to 40 GHz. Moreover, a waveguide-fed LHCP antipodal exponential-exponential tapered slot antenna (AEETSA) is designed at 500 GHz and fabricated by silicon micromachining. The radiation characteristics are examined by measurement results of symmetric beams and ARs lower than 1.5 dB, from 490 to 510 GHz.

引用

页码：1607 / 1614

页数：8

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