Freescale Semiconductor,inc.

Ricardo A Uscola

Lianjun Liu

Darrell Glenn Hill

Marcus R Ray

Chi Taou Tsai

A transceiver includes a harmonic termination circuit that receives a tunable harmonic voltage from a power amplifier control. The harmonic termination circuit includes a variable capacitor that is capable of adjusting its capacitance in response to the tunable harmonic termination voltage to achieve at least two modes of operation. The at least two modes of operation may be EDGE mode and GSM mode. In this embodiment, the harmonic termination circuit allows for linearity specifications of EDGE to be met, while not degrading the efficiency of the transceiver when operating in GSM mode. In one embodiment, the harmonic termination circuit further includes an inductive element in series with the variable capacitor.

Multi-mode transceiver having tunable harmonic termination circuit and method therefor

A power amplifier (PA) line-up () and a method () for more efficiently utilizing battery power are disclosed. PA line-up () includes a driver (), a matching circuit (), and a PA () coupled to a matching circuit (), wherein matching circuit () is configured to be coupled to a filter (). PA line-up () includes a transmission line () coupled to matching circuit () and a switch () configured to selectively couple driver () to either matching circuit () or matching circuit () such that signal () is capable of by-passing PA () when signal () does not need to be amplified by PA (). Furthermore, PA line-up () may include a second transmission line () so that signal () is capable of by-passing a driver () and a PA () when signal () does not need to be amplified by driver () and PA ().

Transmitter with improved power efficiency

A deviceincludes a substratehaving an integrated circuit (IC) diecoupled thereto. A bond wireinterconnects a die bond padon the IC diewith an insulated bond pad. Another bond wireinterconnects a die bond padon the IC diewith another insulated bond pad. The bond wiresandserve as radiating elements of a dipole antenna structure. A reflectorand directorcan be located on the substrateand/or the IC dieto reflect and/or direct a radiation patternemitted by or received by the antenna structure. A tracecan be interconnected between the insulated bond padsto form a folded dipole antenna structure

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Gilbert, AZ, United States of America

Ricardo A Uscola