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The Waveguide Behaviour of the Ballistic Carriers in Confined Qantum States
(Společnost pro radioelektronické inženýrství, 1992-12)
Peculiar waveguide properties of quantum waveguides are revealed using a new transfer matrix based approach in the numerical analysis of the quantum well structures. The approach is built on the solution of the 2D Schrodinger ...
Calibrating the Six-Port Reflectometer Using a Matched Load And Four Unity-Reflection Standards (Part 2)
(Společnost pro radioelektronické inženýrství, 1992-12)
A convenient and exact method of using a sliding load to the calibration of the single six-port reflectometer is described. Neither reflection coefficient nor positions of the sliding load settings need be known. Reflection ...
Standard Time and Frequency
(Společnost pro radioelektronické inženýrství, 1992-12)
The Institute of Radio Engineering and Electronics of the Czechoslovak Academy of Sciences (IREE), Prague, provides the national primary time a frequency reference for the Czechoslovak metrology. The paper describes main ...
The Directional Signal Filtering by Progressive Phasing
(Společnost pro radioelektronické inženýrství, 1992-12)
The paper deals with a method of signal filtering in the feed network of a phased array. Two alternative ways of phase control are described here. Both of them enable to set several directions of zero reception independently ...
An Adaptive Antenna Array with the Time Multiplexed Signal Processing
(Společnost pro radioelektronické inženýrství, 1992-12)
An adaptive antenna array with the digital signal processing requires an independent receiver for each antenna element. This fact significantly influences the cost of the system. The presented paper answers the question ...