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http://dx.doi.org/10.7236/JIIBC.2017.17.4.77

A Study on Millimeter Wave Power Amplifiers Using Spatial Combining  

Ki, Hyeon-Cheol (Dept. of Electronic Engineering, Gachon University)
Publication Information
The Journal of the Institute of Internet, Broadcasting and Communication / v.17, no.4, 2017 , pp. 77-82 More about this Journal
Abstract
As frequencies increase to the millimeter wave bands the cross sections of wave guides become smaller than a few millimeters, which cause sapatial problems in realization of spatial combining power amplifiers. In this paper we intented to overcome the problem by widening the width of wave guides using horn antenna principles. We designed a widened rectangular wave guide for using in spatial combining power amplifier in 60GHz ISM band(57-64GHz), and we installed Antipodal transition in the widened wave guide, and then we characterized it as a spatial combining power amplifier. For the compatibility of WR15 standard wave guide, we widened the width of WR15 to 7mm using principle of H-plane sectoral horn antenna and then installed 3 slots of back to back Antipodal transition. The designed spatial combining power amplifier showed good characteristics of return loss less than -22.4dB and insertion loss less than 0.53dB. However, as widening the width of the wave guide, additional modes such as $TE_{20}$, $TE_{30}$ in addition to $TE_{10}$ were accurred in the bandwidth of WR15, which restricted the bandwidth and widening of the width of the wave guide.
Keywords
waveguide transition; antipodal finline; waveguide-microstrip transition; millimeter wave;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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