Design and Self-Calibration Techniques for Inductor-Less Millimeter-Wave Frequency Dividers

Design and Measurement of an Aqueous Blackbody Calibration Source for the Millimeter-wave/Terahertz Frequency Range*

10:00 B07.6 DIFFRACTION COEFFICIENTS FOR DIELECTRIC WEDGES AND CORNERS WITH APPLICATION TO MONOSTATIC BUILDING IMAGING P. C. Chang, R. J. Burkholder, R. J. Marhefka, J. L. Volakis, The Ohio State University, United States 10:20 B07.7 PHASE SENSITIVE DETECTION AND CLASSIFICATION OF DEFECTS IN CONCRETE STRUCTURES BY ULTRASONIC AND ELECTROMAGNETIC IMAGING TECHNIQUES K. Mayer, University of Kassel,...

The Design and Self-Calibration of Inductive Voltage Dividers for an Automated Impedance Scaling Bridge

The design and construction of inductive voltage dividers (IVDs) for use in impedance bridge applications in the 50 Hz to 1 MHz frequency range is described. Two dividers are described; one designed to operate from 50 Hz to 2 kHz and the other designed to operate from 2 kHz to 1 MHz. Preliminary comparison results of the new IVDs over the 100 Hz to 50 kHz frequency range are given. A new bridge...

Sideband Calibration of Millimeter-Wave Receivers

Accurate calibration of a millimeter-wave heterodyne receiver requires a knowledge of the ratio of gains at the upper and lower sideband frequencies — i.e., the sideband ratio. For an ideal double-sideband receiver, the sideband ratio is unity, but in practice it can be several dB, particularly when a high IF is used [1]. In the case of sideband-separating receivers, the sideband ratio is the i...

Millimeter-Wave Circuit Design for Radar Transceivers

Polarizer design for millimeter-wave plasma diagnostics.

Radiation from magnetized plasmas is in general elliptically polarized. In order to convert the elliptical polarization to linear polarization, mirrors with grooved surfaces are currently employed in our collective Thomson scattering diagnostic at ASDEX Upgrade. If these mirrors can be substituted by birefringent windows, the microwave receivers can be designed to be more compact at lower cost....