ETRI Journal

Electronics and Telecommunications Research Institute (한국전자통신연구원)
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Application of GaAs Discrete p-HEMTs in Low Cost Phase Shifters and QPSK Modulators

  • Kamenopolsky, Stanimir D. (RF Design Team, Sky Gate Ltd.)
  • Received : 2003.12.02
  • Published : 2004.08.31
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Abstract

The application of a discrete pseudomorphic high electron mobility transistor (p-HEMT) as a grounded switch allows for the development of low cost phase shifters and phase modulators operating in a Ku band. This fills the gap in the development of phase control devices comprising p-i-n diodes and microwave monolithic integrated circuits (MMICs). This paper describes a discrete p-HEMT characterization and modeling in switching mode as well as the development of a low-cost four-bit phase shifter and direct quadrature phase shift keying (QPSK) modulator. The developed devices operate in a Ku band with parameters comparable to commercially available MMIC counterparts. Both of them are CMOS compatible and have no power consumption. The parameters of the QPSK modulator are very close to the requirements of available standards for satellite earth stations.

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References

  1. Proc. 2000 IEEE Int. Conf. on Phased Array Systems & Technology Airborne Reception of Data and Direct Broadcast TV Using a Phased Array Antenna Adler, C.O.;Alen, D.J.;Carson, R.S.;Morrison, A.F.;lavelle, M.E.;Anderson, E.D.(et al.)
  2. Proc. 2000 IEEE Int. Conf. on Phased Array Systems & Technology Ku - Band Transmit Phased Array Antenna for Use in FSS Communication System Raby, S.A.;Shimoda, R.Y.;Heisen, P.T.;Reimer, D.E.;Blaser, B.L.;Onorati, G.R.
  3. IEEE Transactions on Microwave Theory and Techniques v.MTT-16 no.7 Design of Digital Loaded Line Phase-Shift Networks for Microwave Thin-Film Applications Francis, L.O.;Hoffman, W.F.
  4. Microwave and Millimeter Wave Phase Shifters, Volume II: Semiconductor and Delay Line Phase Shifters Koul, S.K.;Bhat, B.
  5. IEEE Transactions on Microwave Theory and Techniques v.MTT-29 no.3 Impedance Transformations for the Generalized Reflection Modulator Atwater, H.A.
  6. IEEE Transactions on Microwave Theory and Techniques v.MTT-33 no.12 C-Band 6 - Bit GaAs Monolithic Phase Shifter Andricos, C.;Bahl, I.J.;Griffin, E.L.
  7. Microwave J. v.44 no.12 A Broadband, Four-Bit, Ka-Band MMIC Phase Shifter Penn, J.E.
  8. Microwave J. v.42 no.3 Miniaturized Low Cost 30 GHz Monolithic Balanced BPSK and Vector Modulators: Part I Ashtiani, A.E.;Gokdemir, T.;Passiopoulos, G.;Rezazadeh, A.A.;Nam, S.;Robertson, I.D.
  9. Microwave J. v.42 no.4 Miniaturized Low Cost 30 GHz Monolithic Balanced BPSK and Vector Modulators: Part II Ashtiani, A.E.;Gokdemir, T.;Passiopoulos, G.;Rezazadeh, A.A.;Nam, S.;Robertson, I.D.
  10. 33rd European Microwave Conf. Low Cost 5-Bit Phase Shifter for DBS Phased Array Antennas Kamenopolsky, S.D.
  11. Digitally Controlled Phase Shifter Kamenopolsky, S.D.
  12. MTT-S Int. Microwave Use of Switching Q in the Design of FET Microwave Switches Atwater, H.A.;Sudbury, R.W.
  13. MTT-S Int. Microwave Symp. Digest v.II Low Cost MMIC DBS Chip Sets for Phased Array Applications Wallace, J.;Redd, H.;Furlow, R.
  14. Application Note AN 1892, SA900 I/Q Transmit Modulator for 1 GHz Application Djen, W.S.
  15. IESS-308 (Rev. 10), Intelsat, Earth Station Standard Intelsat