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A Compact K-/Ka-Band Waveguide Transition with Integrated Diplexer and Power Divider
Publikationstyp
Conference Paper
Date Issued
2021-04
Sprache
English
Author(s)
Institut
Start Page
95
End Page
98
Citation
51st European Microwave Conference (EuMC 2021)
Contribution to Conference
Publisher DOI
Scopus ID
The component presented in this work combines three functionalities, i.e., a waveguide transition, frequency separation, and power division. A rectangular waveguide (RWG) serves as common 20/30 GHz port. The signals are diplexed into two 20 GHz and four 30 GHz grounded coplanar waveguides (GCPWs). The required 3 dB and 6 dB power division ratios are achieved reactively and by exploiting symmetries. Both passbands feature a -10 dB reflection bandwidth of more than 1.2 GHz, an insertion loss below 1.3 dB, an isolation exceeding 25 dB, and an amplitude imbalance of less than 1 dB. The component occupies only 9 x 9 mm2 on a single layer printed circuit board (PCB) and is thus suitable for application in highly integrated phased array front-ends.
Subjects
Cavity
diplexer
K-Band
patch
power divider
quarter-mode
ridged waveguide
RWG
SIW
transition