Summary
International Symposium on Antennas and Propagation
2009
Session Number:3D1
Session:
Number:3D1-4
Radiation Patterns of Millimeter-Wave Four-Line Microstrip Comb-Line Antennas in Perpendicular Plane of Feeding Line
Morihiko Nanjyo, Kunio Sakakibara, Nobuyoshi Kikuma, Hiroshi Hirayama,
pp.995-998
Publication Date:2009/10/21
Online ISSN:2188-5079
Summary:
Millimeter-wave antennas have been developed for various applications such as broadband high-speed wireless communication systems and automotive radar systems. Microstrip comb-line antennas (MSCLA) are more advantageous than other millimeter-wave antennas at the viewpoints of low profile and low cost [1]. A comb-line feeding structure is effective for relatively low loss compared with other ordinary microstrip patch array antennas since feeding loss is smaller [2]. Two kinds of four-line planar arrays were developed. One is that radiating elements were connected on the both sides of two feeding lines. The other one is that radiating elements were connected only on one side of four feeding lines. Feeding structure in the former is more simple than the latter. However, design flexibility of radiation pattern in the latter is higher than the former. These two antennas are developed to compare sidelobe characteristics of the radiation patterns in perpendicular plane of feeding line. The difference of the design flexibility is examined in this study.