Simultaneous reduction of amplitude and group-delay variation of input demultiplexer for Ku band satellite transponder

Ju Seop Lee, Man Seok Uhm, In B. Yom, Seong Pal Lee, Churi Kwon Choi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

7 Citations (Scopus)

Abstract

In this paper, design and realization of input demultiplexer(IMUX) for Ku band satellite transponder is described. Circulator chain structure has been used for demultiplexing each channel. Each channel consists of channel filter and external equalizer. External equalizers are designed to reduce the group delay variation and amplitude variation of channel filters simultaneously. Dual-mode technique is adopted for reducing the mass and volume of both the channel filters and external equalizers. Channel filters are designed to have 8-pole elliptic response and equalizers to be of 2-pole reflection-type. For good temperature stability characteristics, INVAR material is used for cavities, irises, and tuning srews of channel filters and external equalizers. The frequency drift has been taken into consideration in design procedure and measured by thermal test. Input demultiplexer is shown to be suitable for Ku band satellite transponder.

Original languageEnglish
Title of host publicationIEEE Vehicular Technology Conference
Pages2669-2672
Number of pages4
Volume58
Edition4
Publication statusPublished - 2003
Externally publishedYes
Event2003 IEEE 58th Vehicular Technology Conference, VTC2003-Fall - Orlando, FL, United States
Duration: 2003 Oct 62003 Oct 9

Other

Other2003 IEEE 58th Vehicular Technology Conference, VTC2003-Fall
CountryUnited States
CityOrlando, FL
Period03/10/603/10/9

Fingerprint

Transponders
Group delay
Equalizers
Satellites
Poles
Demultiplexing
Tuning
Temperature

Keywords

  • Demultiplexer
  • Satellite
  • Transponder

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Cite this

Lee, J. S., Uhm, M. S., Yom, I. B., Lee, S. P., & Choi, C. K. (2003). Simultaneous reduction of amplitude and group-delay variation of input demultiplexer for Ku band satellite transponder. In IEEE Vehicular Technology Conference (4 ed., Vol. 58, pp. 2669-2672)

Simultaneous reduction of amplitude and group-delay variation of input demultiplexer for Ku band satellite transponder. / Lee, Ju Seop; Uhm, Man Seok; Yom, In B.; Lee, Seong Pal; Choi, Churi Kwon.

IEEE Vehicular Technology Conference. Vol. 58 4. ed. 2003. p. 2669-2672.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Lee, JS, Uhm, MS, Yom, IB, Lee, SP & Choi, CK 2003, Simultaneous reduction of amplitude and group-delay variation of input demultiplexer for Ku band satellite transponder. in IEEE Vehicular Technology Conference. 4 edn, vol. 58, pp. 2669-2672, 2003 IEEE 58th Vehicular Technology Conference, VTC2003-Fall, Orlando, FL, United States, 03/10/6.
Lee JS, Uhm MS, Yom IB, Lee SP, Choi CK. Simultaneous reduction of amplitude and group-delay variation of input demultiplexer for Ku band satellite transponder. In IEEE Vehicular Technology Conference. 4 ed. Vol. 58. 2003. p. 2669-2672
Lee, Ju Seop ; Uhm, Man Seok ; Yom, In B. ; Lee, Seong Pal ; Choi, Churi Kwon. / Simultaneous reduction of amplitude and group-delay variation of input demultiplexer for Ku band satellite transponder. IEEE Vehicular Technology Conference. Vol. 58 4. ed. 2003. pp. 2669-2672
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