K-Band Phase Discriminator Using Multiport Downconversion for Monopulse Tracker
- Authors
- Moon, Seong-Mo; Yom, In-Bok; Lee, Han Lim
- Issue Date
- Jun-2017
- Publisher
- IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
- Keywords
- K-band monolithic microwave integrated circuit (MMIC); monopulse tracker; phase discriminator; six-port architecture
- Citation
- IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS, v.27, no.6, pp 599 - 601
- Pages
- 3
- Journal Title
- IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS
- Volume
- 27
- Number
- 6
- Start Page
- 599
- End Page
- 601
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/4375
- DOI
- 10.1109/LMWC.2017.2701331
- ISSN
- 1531-1309
1558-1764
- Abstract
- In this letter, K-band phase discriminator based on multiport downconversion for monopulse tracking system is presented. The proposed architecture adopts multiple six-port junctions to individually process elevation and azimuth difference signals delivered from a multibeam antenna feed network. To produce accurate 2-D angular information, elevation and azimuth difference channel path calibration by reflection-type phase shifters and attenuators are also used. The proposed hybrid multiport junction was implemented with microstrip passive circuits and GaAs monolithic microwave integrated circuits. The performance was verified at the satellite downlink frequency of 20 GHz by successful generations of quadrature I/Q signals according to elevation or azimuth difference signal variations.
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Collections - College of ICT Engineering > School of Electrical and Electronics Engineering > 1. Journal Articles
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