Power sharing system for high power rf amplifiers

Details Power sharing system for high power rf amplifiers Power sharing system for high power rf amplifiers

H - Electricity

03

F

H03F 1/00 (2006.01) H01Q 3/26 (2006.01) H01Q 3/40 (2006.01) H03F 3/20 (2006.01) H03F 3/24 (2006.01) H03F 3/60 (2006.01) H04L 25/03 (2006.01) H04Q 7/22 (2006.01) H04B 7/06 (2006.01)

Patent

CA 2158330

A land mobile radio system (110) includes a plurality of radio channels (112), each radio channel (112) being interconnectable (115) to any one of a number, N, of combiners (114), and each combiner (114) being associated with a corresponding transmit antenna (120). A combiner output signal at the output of each combiner (114) is connected to a transform matrix (133) which divides each combiner output signal into a number, N, of transformed signals, each transformed signal containing an equal power level part, 1/N, of each combiner output signal. Each transformed signal is provided to an amplifier (135) for amplification thereof, and the amplified transformed signals are provided to an inverse-transform matrix (138) which recombines the equal parts of each amplified transformed signal into amplified combiner output signals which are provided to the antennas (120) for transmission thereof. The land mobile radio system (110) includes N antennas (120), and where N is a power of m, e.g., N = mr then the transform matrix (133) is a Fourier transform matrix using a radix-m decimation-in-frequency algorithm having r stages, and the inverse-transform matrix (138) is an inverse-Fourier transform matrix using a radix-m decimation-in-time algorithm having r stages.

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