A Caltech Library Service

Millimeter-Wave Monolithic Schottky Diode-Grid Phase Shifter


Lam, Wayne W. (1987) Millimeter-Wave Monolithic Schottky Diode-Grid Phase Shifter. Dissertation (Ph.D.), California Institute of Technology. doi:10.7907/CGD0-XA98.


Many applications at millimeter wavelengths require fast electronic phase shifters. In this study, the design of diode-grid phase shifters is presented, the fabrication of diode-grids on monolithic gallium-arsenide substrates is demonstrated, and the measurement of these grids is discussed. A new computer-aided design tool is developed to provide an interactive environment for design and to form a basis for comparing theory and experimental results. Diode-grids have been fabricated on 2 cm by 3 cm gallium-arsenide wafers with 2000 aluminum Schottky diodes. A novel small aperture reflectometer is computerized to use a wave-front division interference technique to measure the reflection coefficient of the grids. A 70° phase shift with a 6.5-dB loss was measured at 93 GHz when the bias on the diode-grid was changed from -3V to +1V.

Item Type:Thesis (Dissertation (Ph.D.))
Subject Keywords:Millimeter-Wave Diode-Grid Phase Shifter
Degree Grantor:California Institute of Technology
Division:Engineering and Applied Science
Major Option:Electrical Engineering
Thesis Availability:Public (worldwide access)
Research Advisor(s):
  • Rutledge, David B.
Thesis Committee:
  • Rutledge, David B. (chair)
  • Psaltis, Demetri
  • Vahala, Kerry J.
  • Yariv, Amnon
  • Luhmann, Neville C., Jr.
  • Nicolet, Marc-Aurele
  • Bridges, William B.
Defense Date:31 January 1987
Funding AgencyGrant Number
Army Research Office (ARO)UNSPECIFIED
Amoco FoundationUNSPECIFIED
Record Number:CaltechETD:etd-03032008-105407
Persistent URL:
Default Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:851
Deposited By: Imported from ETD-db
Deposited On:03 Mar 2008
Last Modified:21 Dec 2019 02:12

Thesis Files

PDF (Lam_ww_1987.pdf) - Final Version
See Usage Policy.


Repository Staff Only: item control page