Title :
Design of HTS, lumped-element, manifold-type microwave multiplexers
Author :
Matthaei, George L. ; Rohlfing, Stephan M. ; Forse, Roger J.
Author_Institution :
Superconductor Technol. Inc., Santa Barbara, CA, USA
fDate :
7/1/1996 12:00:00 AM
Abstract :
Manifold-type frequency multiplexers are especially useful when a sizable number of channels are required. However, they normally use interconnecting transmission lines that could result in an overall structure many wavelengths across. Herein we investigate the design of compact manifold multiplexers using lumped-element filters which are convenient for high temperature superconductor (HTS) realization, while the transmission lines are replaced with lumped-element equivalents. Design examples calculated for frequencies in the vicinity of 0.8 GHz yield element values which are quite feasible for realization in HTS microstrip circuits. The examples indicate that very compact multiplexers should be obtainable
Keywords :
UHF filters; band-pass filters; frequency division multiplexing; high-temperature superconductors; lumped parameter networks; microstrip circuits; microwave links; multiplexing equipment; passive filters; resonator filters; superconducting microwave devices; 0.8 to 2 GHz; FDM; HTS microstrip circuits; HTS microwave multiplexers; UHF; compact manifold multiplexers; frequency multiplexers; high temperature superconductor realization; lumped-element filters; lumped-element multiplexers; manifold-type; Base stations; Circuits; Filters; Frequency; High temperature superconductors; Multiplexing; Propagation losses; Superconducting filaments and wires; Superconducting transmission lines; Transmitting antennas;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
