Abstract: A radio-antenna interface is disclosed for coupling of an antenna to one or more radio receivers. The radio-antenna interface includes a hub and a feed-boom. The hub includes an aperture adapted to receive the feed-boom. The hub is also fitted with latches adapted to detachably couple the radio to the hub in a manner which is substantially independent of a configuration type of the radio. The hub is adapted to be detachably coupled to the antenna in a manner which substantially avoids reconfiguration of the antenna. The feed-boom communicates signals received by the antenna to the radio.

Abstract: An apparatus and method for providing adaptive control of the output of a radio frequency coupler. A plurality of input signals is provided to a multi-prong divider/combiner, the divider/combiner having a first and a second input terminals communicating a first and a second input signals with a first and a second prong of the divider/combiner, the divider/combiner dividing/combining said signals into at least one output signal. A first auxiliary signal is provided to a receiving terminal of a first transmission line, the first transmission line electromagnetically manipulating signal transmission in the first prong such that a first manipulated signal is substantially different in magnitude than the first input signal and dividing/combining the manipulated signal and the second input signal to provide a controlled output signal.

Abstract: An adjustable low pass filter and directional coupler used in microwave communication are combined to reduce the size of the microwave circuit. The low pass filter portion and coupling portion are made independently tunable with a plurality of varactors and variable reactance circuits connected to ground.

Abstract: An apparatus and method for providing adaptive control of the output of a radio frequency coupler. Adaptive control may include providing a transmission line having a plurality of branches extending therefrom and terminating, correspondingly, with a plurality of terminals and terminating, at its opposite end, with a single terminal, as well as, providing one or more proximate transmission lines inductively coupled with the transmission line and each having an input terminal at one end.