Title :
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
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;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
DOI :
10.1109/TAP.2015.2434422
