Higher Order MoM Analysis of Traveling-Wave Waveguide Antennas with Matched Waveports

Author

Yong Wang ; Xun-Wang Zhao ; Yu Zhang ; Ting, S.W. ; Sarkar, Tapan K. ; Liang, C.H.

Author_Institution

Sch. of Electron. Eng., Xidian Univ., Xi´an, China

Volume

63

Issue

8

fYear

2015

fDate

Aug. 2015

Firstpage

3718

Lastpage

3721

Abstract

The method of mode matching (MM) is used to construct ideal waveports in the context of the method of moments (MoM). The waveports can provide not only excitations as sources but also perfectly matched loads for traveling-wave slotted waveguide antennas. Additionally, the application of the higher order basis functions (HOBs) in MoM significantly reduces the number of unknowns compared to the RWG basis functions. Numerical results show that the proposed method is accurate and efficient for traveling-wave slotted waveguide antennas. Finally, a Ka-band waveguide array with 1976 narrow-wall slots is solved using a high-performance cluster.

Keywords

method of moments; millimetre wave antenna arrays; slot antenna arrays; HOB; Ka-band waveguide array; MM; MoM; higher order MoM analysis; higher order basis function; matched waveport; mode matching method; traveling-wave slotted waveguide antenna; Antenna radiation patterns; Arrays; Electromagnetic waveguides; Method of moments; Surface impedance; Surface waves; Higher order basis functions (HOBs); method of moments (MoM); waveguide antenna; waveports;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/TAP.2015.2434422

Filename

7109860