Power amplifier output module for dual-mode digital systems
First Claim
1. A power amplifier output module having low insertion loss and self-shielding properties for dual-mode digital systems, comprising:
- a first power amplifier drive circuit for operating in a first digital mode comprising a first power amplifier and a first output impedance matching network having integrated suppression of higher order harmonics;
a second power amplifier drive circuit for operating in a second digital mode comprising a second power amplifier and a second output impedance matching network having integrated suppression of higher order harmonics;
a single diplexer coupled to the first impedance matching network and the second impedance matching network, the single diplexer selectively passing a signal from the first power amplifier drive circuit while simultaneously attenuating a signal from the second power amplifier drive circuit in a first condition and selectively passing a signal from the second power amplifier drive circuit while simultaneously attenuating a signal from the first power amplifier drive circuit in a second condition; and
a single broadband directional coupler, coupled to the diplexer, for coupling both the first power amplifier drive circuit and the second power amplifier drive circuit.
21 Assignments
0 Petitions
Accused Products
Abstract
A power amplifier output module 200 having low insertion loss and self-shielding properties for dual-mode digital systems is provided. Module 200 has a first power amplifier drive circuit comprising a first power amplifier 220 and a first output impedance matching network having integrated suppression of higher order harmonics 222. A second power amplifier drive circuit comprising a second power amplifier 224 and a second output impedance matching network having integrated suppression of higher order harmonics 226 is also provided. Module 200 also comprises a single diplexer 228 coupled to the first impedance matching network and the second impedance matching network. Module 200 also comprises a single broadband directional coupler 230, coupled to the diplexer 228, for coupling both the first power amplifier drive circuit and the second power amplifier drive circuit. Module 200 provides an integrated solution involving greater performance in a smaller package.
-
Citations
20 Claims
-
1. A power amplifier output module having low insertion loss and self-shielding properties for dual-mode digital systems, comprising:
-
a first power amplifier drive circuit for operating in a first digital mode comprising a first power amplifier and a first output impedance matching network having integrated suppression of higher order harmonics; a second power amplifier drive circuit for operating in a second digital mode comprising a second power amplifier and a second output impedance matching network having integrated suppression of higher order harmonics; a single diplexer coupled to the first impedance matching network and the second impedance matching network, the single diplexer selectively passing a signal from the first power amplifier drive circuit while simultaneously attenuating a signal from the second power amplifier drive circuit in a first condition and selectively passing a signal from the second power amplifier drive circuit while simultaneously attenuating a signal from the first power amplifier drive circuit in a second condition; and a single broadband directional coupler, coupled to the diplexer, for coupling both the first power amplifier drive circuit and the second power amplifier drive circuit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
-
-
15. A dual mode communication device having a first digital band and a second digital band, the communication device having a power amplifier output module for dual-band digital systems, comprising:
-
a first power amplifier drive circuit for operating in a first digital band comprising a first power amplifier and a first output impedance matching network having integrated suppression of higher order harmonics; a second power amplifier drive circuit for operating in a second digital band comprising a second power amplifier and a second output impedance matching network having integrated suppression of higher order harmonics; a single diplexer coupled to the first impedance matching network and the second impedance matching network, the single diplexer selectively passing a signal from the first power amplifier drive circuit while simultaneously attenuating a signal from the second power amplifier drive circuit in a first condition and selectively passing a signal from the second power amplifier drive circuit while simultaneously attenuating a signal from the first power amplifier drive circuit in a second condition; and a single broadband directional coupler, coupled to the diplexer, for coupling both the first power amplifier drive circuit and the second power amplifier drive circuit. - View Dependent Claims (16, 17, 18, 19, 20)
-
Specification