STUDY AND INVESTIGATION OF MILLIMETER AND SUB MILLIMETER WAVE RECEIVER TECHNIQUES.
Quarterly rept. no. 1, 1 Mar-31 May 63.
ILLINOIS UNIV URBANA ELECTRICAL ENGINEERING RESEARCH LAB
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This program has as its goal the development of video detection techniques which are appropriate for the millimeter and submillimeter range of the spectrum. The sensitivity of the pyroelec tric detector has been, increased to 3.3 x 10 to the minus 10th power ampmw by using an improved mount for the detector element. The minimum detectable power has been measured to be 8 x 10 to the minus 7th power watt. This value agrees favorably with the calculated value of 3.8 x 10 to the minus 7th power watt. The 0ction loss of the reflecting beam waveguide has been calculated and is found to depend upon the field polarization and the reflector spacing. An experimental transmission line has been set up in the laboratory and preliminary measure ments indicate a loss below .02 db per iteration. The possibility of using crystal diodes for detectors at millimeter wavelengths is discussed and experimental results for two models of wall current detectors are presented. Author