Pasternack Enterprises Inc., Irvine, Calif., introduced a new line of broadband RF power combiners, offering a broad bandwidth for systems using components such as power amplifiers, antenna feeds, attenuators and switches. A special area of use would be in combining individual power amplifiers together into a large power block in an amplifier system.
They are offered in 2- and 4-way configurations and deliver high power up to 600 W and operate over a broad temperature range between 55° to 85°C, expanding the versatility of this product offering to a wide range of military and commercial applications. Pasternack’s broadband RF combiners offer frequency ranges from 20 MHz to 6 GHz, low insertion loss from 0.35 to 1 dB and low VSWR up to 1.30:1. Other features of these power combiners include excellent amplitude and phase balance, high power handling, good isolation levels and rugged packaging.
RF power combiners are devices that combine or sum a number of RF input signals to a common output, while maintaining the characteristic impedance of the inputs. As systems become more complex, choosing how best to combine two or more RF signals has become a far more difficult question to answer, especially when high power and wide bandwidth are involved. Pasternack’s RF combiners offer low loss and low VSWR while providing competitive port-to-port isolation through the use of high power resistive components. These RF signal combiners are designed to be screw-down mounted to a heatsink.
Pasternack
http://www.pasternack.com/pages/Featured_Products/rf-power-combiners.htm
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