Summary
International Symposium on Antennas and Propagation
2011
Session Number:FrP1
Session:
Number:FrP1-21
Dual and Linearly Polarized SIW Series Slot Array Antenna for Ka Band
Dong-yeon Kim, Sumin Yun, Woo-sung Chung, Chang-hyun Park, Sang-joo Lee, Sangwook Nam,
pp.-
Publication Date:2011/10/25
Online ISSN:2188-5079
Summary:
In this paper, the prototype of a dual and linearly polarized series slot array antenna, using substrate integrated waveguide (SIW) technology, is proposed. The ±45° dual polarized slot arrays share a common aperture of 62.4 × 55.04 mm. The uniform field distribution and impedance matching are realized by alternating reactance slot pairs at 35 GHz. These radiating slot elements and coupling slots are placed in double-layered substrates having a dielectric constant 3.5 with a thickness of 1.52 mm and 0.75 mm. Moreover, the coordinate systems of radiating and coupling slots are designed to realize in-phase field excitation and eliminate grating lobes for all cutting planes. The proposed antenna can be fabricated using a standard PCB process, such as drilling and etching, for low cost and light weight features. By using the full-wave simulator, CST MWS, we checked the electrical performance, including bandwidth, realized gain, and side lobe level (SLL), with 1 GHz, 24.2 dBi, and ?13.6 dB, respectively.