| 摘要 |
PURPOSE: A power amplifier having an external connection structure of a distributor and a combiner, is provided to easily obtain an input signal by selecting a structure distributing an input signal of the power amplifier, which is an output signal of a driving amplifier, so that high output gain and output additional efficiency can be obtained. CONSTITUTION: A power amplifier having an external connection structure of a distributor and a combiner, comprises a radio frequency(RF) input ports(1,2), an input power distributing device, many amplifying devices(13,14,15,16) and an output power combining device(17). The RF input ports(1,2) are input terminals. The input power distributing device outputs by distributing one input signal, supplied from external through the RF input ports, into actually equal sizes of many signals. The amplifying devices(13,14,15,16) distribute and amplify demanded power, by respectively amplifying many input signals distributed by the distributing device. And the output power combining device(17) outputs by combining all of the many signals amplified in the many amplifying devices. The input power distributing device has a first/second input power distributors(11,12) outputting by dividing inputted signals into respective two signals without an input loss. |
