G. Pfitzenmaier

Synthesis and Realization of Narrow-Band Canonical Microwave Bandpass Filters Exhibiting Linear Phase and Transmission Zeros

G. Pfitzenmaier, G. Pfitzenmaier, 1982 .

An Exact Solution for a Six-Cavity Dual-Mode Elliptic Bandpass Filter

G. Pfitzenmaier, G. Pfitzenmaier, 1977, 1977 IEEE MTT-S International Microwave Symposium Digest.