W. J. Chudobiak
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A microstrip or stripline four-port structure which allows two signal paths to physically cross over while maintaining high isolation is described in this letter.
Experimental results obtained indicate that an excess phase shift is the most pronounced high-frequency parasitic effect resulting from a microstrip quarter-wave transformer impedance discontinuity.… Continue Reading
The transport equations and charge-control concepts are applied in an analysis of a static conductivity-modulation mechanism occurring in the collector region of n-p-ν-n power transistors. This… Continue Reading
An empirically derived equation is given which describes the apparent variations of /spl epsiv//sub eff/ with frequency in microstrip transmission lines for a wide range of dielectric constants and… Continue Reading
Describes a low-cost, dc coupled, solid-state pulse bias source capable of output voltages of up to 300 V, peak output pulse currents in excess of 4 A and pulse widths in the range 150-500 ns.
An empirically derived relation is reported which accurately describes the open-end effect in microstrip transmission lines on alumina substrates. This empirical equation was used to describe the… Continue Reading
A description is given of a microstrip, branch-arm hybrid which exhibits 3-dB coupling at all harmonics of a fundamental frequency as compared to the odd-harmonic coupling exhibited by conventional… Continue Reading
The peak output power and efficiency of a silicon IMPATT diode operating in the CW and pulse modes are compared. It is shown that because of thermal effects, the peak pulse output power for a given… Continue Reading