Showing papers on "Balun published in 1969"
Patent•
15 Aug 1969
TL;DR: In this article, the characteristic impedance of each component transmission line is selected to cause that line to function as a quarter wave transformer for providing an impedance transformation ratio for the balun which is other than an integral square.
Abstract: A balun transformer in which the characteristic impedance of each of its component transmission lines is selected to cause that line to function as a quarter wave transformer for providing an impedance transformation ratio for the balun which is other than an integral square.
19 citations
05 May 1969
TL;DR: In this paper, the design, construction, and evaluation of a five-resonator, broad-band frequency doubler employing charge-storage diodes is discussed, and the experimental doubler exhibits approximately an octave bandwidth at 50 percent efficiency.
Abstract: Many frequency multipliers can be viewed as consisting of an impedance inverter which couples together impedances at two different frequencies. Using this point of view, the design, construction, and evaluation of a five-resonator, broad-band frequency doubler employing charge-storage diodes is discussed. The doubler is a balanced design, employing two diodes and a balun. Design procedures which relate a low-pass filter prototype to the doubler circuit are presented. Good agreement between theory and experiment has been demonstrated; the experimental doubler exhibits approximately an octave bandwidth at 50 percent efficiency with an input frequency range of 1 to 2 GHz.
9 citations