Summary
International Symposium on Antennas and Propagation
2010
Session Number:2WB2
Session:
Number:2WB2-5
Investigations on Thermal Distribution and Average Power Handling Capability of Substrate-Integrated Waveguide (SIW)
Yumei Chang, Wenquan Che, Liming Gu, Li Li,
pp.-
Publication Date:2010/11/23
Online ISSN:2188-5079
Summary:
Taking the advantages of rectangular waveguide (RW) and microstrip, the substrate-integrated aveguide(SIW) has found wide applications in microwave engineering [1]. For highly integrated icrowave systems, especially in case of high power, average power handling capability (APHC) is important issue to consider, which is critically required in practical engineering applications. As the microwave energy propagates along the waveguides, part of it would be dissipated in the way of Joule heat, which is mainly contributed by Ohmic conductor loss and dielectric loss of the waveguides. In this paper, the APHC of SIW is numerically investigated, which is based on the improved formula of Ohmic loss proposed by Che etc [2]. Factors which may affect the attenuation loss of SIW are also studied. Some important conclusions are given, which may provide useful guidance for the engineering application of SIW structure, especially in case of high power.