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300 GHz vector-sum phase shifter using InP DHBT amplifiers
- Authors
- Yu, H. G.; Lee, K. J.; Kim, M.
- Issue Date
- 14-2월-2013
- Publisher
- INST ENGINEERING TECHNOLOGY-IET
- Citation
- ELECTRONICS LETTERS, v.49, no.4, pp.263 - 264
- Indexed
- SCIE
SCOPUS
- Journal Title
- ELECTRONICS LETTERS
- Volume
- 49
- Number
- 4
- Start Page
- 263
- End Page
- 264
- ISSN
- 0013-5194
- Abstract
- A vector-sum phase shifter that provides 90 degrees phase control with a positive signal gain is successfully demonstrated at WR-3 band. The integrated circuit consists of input and output microstrip power dividers and two InP DHBT amplifiers with a 300 GHz gain of 14.8 dB. The measurements on a fabricated phase shifter show offset phases of -46 degrees, -22 degrees, 0 degrees, 25 degrees, 57 degrees and signal gain of 7.7 to 10.1 dB at 300 GHz.
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