Patent ID: 8564381
Filing Date: 2013-10-22
Classification: H01Q,H03H,H04B,H04L,H04W

Abstract:
1. An apparatus, comprising: a first matching circuit coupled to a multi-band antenna, wherein the first matching circuit comprises first variable reactances, wherein the first matching circuit is coupled with the multi-band antenna by way of a first input port, and wherein the first matching circuit is associated with a first band; a second matching circuit coupled to the multi-band antenna, wherein the second matching circuit comprises second variable reactances, wherein the second matching circuit is coupled with the multi-band antenna by way of a second input port, and wherein the second matching circuit is associated with a second band; an RF voltage detector coupled to the multi-band antenna, wherein the RF voltage detector is configured to produce a detected voltage; a controller coupled to the first and second variable reactances, wherein the controller supplies one or more first bias signals to the first variable reactances to increase the power from the first input port detected by the RF voltage detector and one or more second bias signals to the second variable reactances to increase the power from the second input port detected by the RF voltage detector, wherein the first and second matching circuits are coupled to the multi-band antenna by a diplexer, wherein the first and second matching circuits, the controller and the RF voltage detector are fabricated in a multichip module; and a high-Q inductor external to the multichip module.