Patent ID: 6131022
Filing Date: 2000-10-10
Classification: H01Q

Abstract:
A transceiver comprising:transmitter means having an output, the transmitter for supplying a first electromagnetic energy signal available at the output of the transmitter;receiver means having an input, the receiver for obtaining communication information associated with a second electromagnetic energy signal;first antenna means having a port, the first antenna means for intercepting a first portion of the second electromagnetic energy signal for forming a first receive signal, the first receive signal available at the port of the first antenna means, and the first antenna means further for broadcasting a first portion of the first electromagnetic energy signal;phase shifting means having a first and a second port and an input;phase control means having an input and an output, the output connected to the input of the phase shifting means;second antenna means having a port connected to the first port of the phase shifting means, the second antenna means for intercepting a second portion of the second electromagnetic energy signal for forming a second receive signal, the second receive signal available at the port of the second antenna means, and the second antenna means further for broadcasting a second portion of the first electromagnetic energy signal, wherein the phase shifting means for applying a first predetermined phase shift to the second receive signal for forming a phase-shifted receive signal, the phase shifted receive signal available at the second port of the phase-shifting means; andcombiner/divider means having a first, second and third port, the first port connected to the port of the first antenna means, the second port connected to the second port of the phase shifting means and the third port connected to the output of transmitter and to the input of the receiver, the combiner/divider means in a first mode of operation for directing a first part of electromagnetic energy available at the third port to the first port and a second part of electromagnetic energy available at the third port to the second port and in a second mode of operation for combining electromagnetic energy available at the first port and the second port for forming a combined electromagnetic energy signal available at the third port,wherein the input of the phase control means connected to the third port of the combiner/divider means, the phase control means for generating a phase control signal in response to the magnitude of the combined electromagnetic energy signal, the phase control signal supplied to the input of the phase shifting means and further wherein the first predetermined phase shift in response to the phase control signal.