| 摘要 |
A low-loss combiner for phase differential systems, wherein the combiner does not have an output resistor and wherein the outcoupling point is asymmetrically positioned with respect to the two inputs of the combiner. In particular, the location is such that the combiner has an input impedance suitable for input signals thereof with a large range of mutual phase difference. This input impedance advantageously has a very small reactive component. Additionally, the real part of the input impedance increases as the phase difference between the input signals of the combiner increases. Furthermore, a (preferably adaptive) RP amplifier is disclosed, in which the input signal is amplified by an active splitter and split into a first and a second signal with a mutual phase difference in a manner that is dependent on the amplitude of the input signal. The two signals are combined again after further amplification by the low-loss combiner. |
