Title :
An integrated Butler matrix in multi-layer technology for multi-port amplifier applications
Author :
Zak, T. ; Sachse, K.
Author_Institution :
Dept. of Electron., Wroclaw Univ. of Technol., Poland
Abstract :
The elements of the matrix - 3 dB/90° coupled-line directional couplers and cross-overs - have been designed in multilayer technology, optimised and tested individually, and then merged to form the whole integrated 4 × 4 Butler matrix. A good performance of the manufactured matrix, operating in the frequency band 2-4 GHz, encouraged us to design a four-channel amplifier with four input- and four output ports, in which monolithic amplifiers are surface-mounted into 50 Ω microstrip lines connecting the input and output Butler matrices. Very promising experimental results are shown.
Keywords :
UHF amplifiers; UHF circuits; microstrip circuits; microstrip directional couplers; mobile satellite communication; multibeam antennas; multiport networks; space division multiplexing; 2 to 4 GHz; 50 ohm; beam forming networks; coupled-line directional couplers; cross-overs; four-channel amplifier; frequency band; integrated Butler matrix; microstrip lines; mobile satellite communication; multi-beam antennas; multi-layer technology; multi-port amplifier applications; space multiplexing; Butler matrix; Design optimization; Directional couplers; Frequency; Joining processes; Manufacturing; Microstrip; Nonhomogeneous media; Testing; Transmission line matrix methods;
Conference_Titel :
Microwaves, Radar and Wireless Communications, 2002. MIKON-2002. 14th International Conference on
Print_ISBN :
83-906662-5-1
DOI :
10.1109/MIKON.2002.1017805
