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Ka-Band Downconverter using LO multiplication for Communications Satellite Payload
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- Authors
- D.P. Chang, I.B. Yom, D.H. Shin, J.C. Jeong, S.H. Oh
- Issue Date
- 2006-06
- Citation
- AIAA International Communications Satellite Systems Conference (ICSSC) 2006, pp.1-4
- Publisher
- AIAA
- Language
- English
- Type
- Conference Paper
- Abstract
- A Ka-band downconverter assembly, integrated microwave assembly was developed for Ka-band Communications Satellite payload in the frequency range of 29.6 ~ 30.0GHz for input and 3.2 ~3.6GHz for output. The assembly consists of a downconverter module, a local oscillator module and two OCXO modules. The output frequency of local oscillator module is 8.8GHz and it is multiplied by three in the downconverter module. The downconverter module and local oscillator module have primary chain and secondary chain internally for high reliability of space application. The downconverter module has been designed with Kaband MMIC chip set fabricated for satellite transponder. The developed downconverter assembly has 22dB of gain, 27dBm of OIP3 and 96dBc/Hz of phase noise at 10kHz offset. The assembly is the size of 18cm x 14cm x 11cm and the mass of 1.6kg.
- KSP Keywords
- Frequency range, High Reliability, Ka-band communications, Output frequency, local oscillator, phase noise, satellite payload, space applications