Wideband Beam-Scanning Circularly Polarized Inclined Slots Using Ridge Gap Waveguide

被引：47

作者：

Al Sharkawy, Mohamed ^{[1
,2
]}

Kishk, Ahmed A. ^{[1
]}

机构：

[1] Concordia Univ, Dept Elect & Comp Engn, Montreal, PQ H3G 1M8, Canada

[2] Arab Acad Sci Technol & Maritime Transport, Dept Elect & Commun Engn, Alexandria 21411, Egypt

来源：

IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS | 2014年 / 13卷

关键词：

Beam scanning; circularly polarized; ridge gap waveguide (RGW); slots array;

D O I：

10.1109/LAWP.2014.2331679

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 wideband circularly polarized (CP) frequency-dependent slot antenna array is designed for beam scanning using the ridge gap waveguide (RGW) technology. The merge between both the printed and the RGW technologies for providing a wideband CP antenna array is newly implemented here. The designed CP antenna has been fabricated, and measurement results are provided and compared to the full-wave analysis. A measured antenna axial ratio (AR) and impedance bandwidths of similar to 21% are achieved from 12.5 to 15.5 GHz. The proposed antenna preserves its CP characteristics of AR below 3 dB while achieving continuous frequency beam scanning from backward to forward directions including broadside radiation that covers +15 degrees to -15 degrees with an average gain of 12.5 dBi.

引用

页码：1187 / 1190

页数：4

共 6 条

[1]

Alfonso E., 2009, P 3RE EUCAP MAR, P23

[2]

Alfonso E, 2010, IEEE MTT S INT MICR, P1544, DOI 10.1109/MWSYM.2010.5514731

[3]

[Anonymous], 2012, CST STUD SUIT

[4] Local Metamaterial-Based Waveguides in Gaps Between Parallel Metal Plates [J].

Kildal, Per-Simon ;

Alfonso, E. ;

Valero-Nogueira, A. ;

Rajo-Iglesias, Eva .

IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS, 2009, 8 :84-87

[5] Waveguide slot antennas for circularly polarized radiated field [J].

Montisci, G ;

Musa, M ;

Mazzarella, G .

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, 2004, 52 (02) :619-623

[6] Design of circularly polarized waveguide slot linear arrays [J].

Montisci, Giorgio .

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, 2006, 54 (10) :3025-3029

← 1 →