2 x 2 Lens Array Antenna Using Square-Bottom Concave-Convex Lens in 300-GHz Band

被引：3

作者：

Baharom, Bazilah ^{[1
]}

Sugimoto, Yoshiki ^{[1
]}

Rohani, Bakar ^{[1
]}

Sakakibara, Kunio ^{[1
]}

Kikuma, Nobuyoshi ^{[1
]}

Yamada, Yoshihide ^{[2
]}

Rahman, Nurul Huda Abd ^{[3
]}

机构：

[1] Nagoya Inst Technol, Dept Elect & Mech Engn, Nagoya 4668555, Japan

[2] Univ Teknol Malaysia, Malaysia Japan Int Inst Technol, Kuala Lumpur 54100, Malaysia

[3] Univ Teknol MARA, Coll Engn, Antenna Res Ctr, Sch Elect Engn, Shah Alam 40450, Malaysia

来源：

IEEE OPEN JOURNAL OF ANTENNAS AND PROPAGATION | 2023年 / 4卷

关键词：

Lenses; Antenna arrays; Antennas; Horn antennas; Gain; Aperture antennas; Dielectrics; Lens antenna; concave-convex; antenna array; sub-terahertz; PHASED-ARRAY;

D O I：

10.1109/OJAP.2023.3325055

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 2 x 2 lens array provides a half reduction of antenna height compared to the twice diameter single-feed lens antenna with an almost similar gain performance due to the same aperture size. However, it generally suffers from a non-uniform amplitude distribution of each lens, which degrades the overall lens antenna performance. This study proposes a 2 x 2 lens array antenna composed of square-bottom lenses with a concave-convex lens shaping design to improve the uniformity and aperture efficiency. The measured results of the proposed 2 x 2 square-bottom concave-convex lens array antenna with a lens height of 9.74 mm achieved a boresight gain of 34.9 dBi, and the lowest sidelobe level observed was greater than -12 dB in the 300-GHz band.

引用

页码：1074 / 1086

页数：13

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