Patent ID: 7417515
Filing Date: 2008-08-26
Classification: H01P,H04B

Abstract:
1. An on-chip antenna switching structure, comprising: a transmission path further comprising on a chip: an amplifier means and a first switching means and an output terminal in series, for providing an outgoing signal to an antenna when in a transmission mode; said antenna in communication with said output terminal via a first impedance matching means; said first impedance matching means matching an impedance of said antenna to an impedance of said chip; a receiving path further comprising on said chip: an input terminal coupled to a receiver means for receiving an incoming signal from said antenna when in a receiving mode; a second switching means on said chip coupled between an input to said receiver means and a reference potential, said second switching means, when closed, causing a transmission line between said input terminal and said receiver to be shorted to said reference potential, where when in said transmission mode, said first switching means and said second switching means are in a closed position and when in said receiving mode, said first switching means and said second switching means are in an open position; and said antenna in communication with said input terminal via a second impedance matching means, said second impedance matching means matching said impedance of said antenna to said impedance of said chip.