Filtering, Frequency Multiplexing, and Other Microwave Applications with Inverted-Common-Collector Transistor Circuits

摘要

To be useful in the design of microwave integrated circuits, conventional components often need to be severely modified or to be employed in other than the usual configurations. The inverted-common-collector (ICC) transistor is an example of a useful active microwave circuit element, suitable for integrated-circuit applications, but virtually unused at lower frequencies. Initial results on active filters using ICC transistors were reported at the 1968 G-MTT symposium. More recently, the ICC configuration has been successfully used to realize stable multiplexers, impedance-matching elements, oscillators, and amplifiers at UHF and microwave frequencies. The purpose of this paper is to present several new applications for ICC transistor circuits.