Title :
Design of a DC-to-90-GHz resistive load
Author :
Jain, Nitin ; Wells, Dennis
Author_Institution :
Central Res. & Dev., M/A-COM, Lowell, MA, USA
fDate :
2/1/1999 12:00:00 AM
Abstract :
A resistive load with greater than 30 dB return loss for a frequency band of DC to 90 GHz is presented. Frequency dependence of the load impedance is removed by cancellation of the imaginary components of the impedance. Optimization of the load is achieved using commercial EM-based optimizers. Measurements, using a modified multiline TRL calibration, show an excellent match with EM simulations
Keywords :
calibration; circuit optimisation; distributed parameter networks; equivalent circuits; linear network synthesis; load (electric); microstrip circuits; millimetre wave devices; thin film resistors; 0 to 90 GHz; 30 dB; EM-based optimizers; broadband resistive terminations; frequency dependence elimination; load impedance; load optimization; modified multiline TRL calibration; resistive load design; return loss; Calibration; Circuit simulation; Dielectric measurements; Frequency; Glass; Impedance measurement; Loss measurement; Resistors; Trademarks; Transmission line measurements;
Journal_Title :
Microwave and Guided Wave Letters, IEEE
