Millimeter-Wave Microstrip Comb-Line Antenna Using Reflection-Canceling Slit Structure

被引：98

作者：

Hayashi, Yuki ^{[1
]}

Sakakibara, Kunio ^{[1
]}

Nanjo, Morihiko ^{[1
]}

Sugawa, Shingo ^{[1
]}

Kikuma, Nobuyoshi ^{[1
]}

Hirayama, Hiroshi ^{[1
]}

机构：

[1] Nagoya Inst Technol, Dept Comp Sci & Engn, Nagoya, Aichi 4668555, Japan

来源：

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION | 2011年 / 59卷 / 02期

关键词：

Array antenna; comb-line antenna; microstrip antenna; millimeter-wave;

D O I：

10.1109/TAP.2010.2096180

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：

A microstrip comb-line antenna is developed in the millimeter-wave band. When the element spacing is one guide wavelength for the broadside beam in the traveling-wave excitation, reflections from all the radiating elements are synthesized in phase. Therefore, the return loss increases significantly. Furthermore, re-radiation from elements due to the reflection wave degrades the design accuracy for the required radiation pattern. We propose the way to improve the reflection characteristic of the antenna with arbitrary beam directions including strictly a broadside direction. To suppress the reflection, we propose a reflection-canceling slit structure installed on the feeding line around each radiating element. A 27-element linear array antenna with a broadside beam is developed at 76.5 GHz. To confirm the feasibility of the simple design procedure, the performance is evaluated through the measurement in the millimeter-wave band.

引用

页码：398 / 406

页数：9

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