Transmit-receive radio frequency front end integrated circuits for laptop computer applications
First Claim
1. A radio frequency (RF) communications system with a first operating frequency band and a second operating frequency band, the system comprising:
- a first antenna;
a second antenna;
a transceiver with a first operating frequency band transmission port, a second operating frequency band transmission port, a first operating frequency band primary reception port, a second operating frequency band secondary reception port, a second operating frequency band primary reception port, and a second operating frequency band secondary reception port;
a first front end circuit including a first operating frequency band low noise amplifier, a second operating frequency band low noise amplifier, and a first operating frequency band power amplifier, the first front end circuit being connected to the first antenna;
a second front end circuit including a first operating frequency band low noise amplifier, a second operating frequency band low noise amplifier, and a second operating frequency band power amplifier, the second front end circuit being connected to the second antenna;
a first switching circuit selectively connecting the first operating frequency band transmission port, the first operating frequency band primary reception port, and the second operating frequency band secondary reception port to the first front end circuit; and
a second switching circuit selectively connecting the second operating frequency band transmission port, the first operating frequency band secondary reception port, and the second operating frequency band primary reception port to the second front end circuit;
wherein the first antenna and the second antenna are distant from the transceiver, the first and second front end circuit are proximal to the respective one of the first and second antenna, and the first and second switching circuits are proximal to the transceiver.
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0 Petitions
Accused Products
Abstract
A radio frequency communications system with a first operating frequency band and a second operating frequency band is disclosed. There is a first antenna. A transceiver has a first transmission port, a second transmission port, a first reception port, and a second reception port. In a first front end circuit, a first port is coupled to the antenna, and a second port is coupled to the transceiver. The first front end circuit has a first low noise amplifier, a second low noise amplifier, a first power amplifier, and a second power amplifier. A switching circuit connects the first transmission port, the first reception port, the second transmission port, and the second reception port to the second port of the first front end circuit. The antenna is distant from the transceiver, while the first front end circuit is proximal to the antenna. The first switching circuit is proximal to the transceiver.
33 Citations
45 Claims
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1. A radio frequency (RF) communications system with a first operating frequency band and a second operating frequency band, the system comprising:
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a first antenna; a second antenna; a transceiver with a first operating frequency band transmission port, a second operating frequency band transmission port, a first operating frequency band primary reception port, a second operating frequency band secondary reception port, a second operating frequency band primary reception port, and a second operating frequency band secondary reception port; a first front end circuit including a first operating frequency band low noise amplifier, a second operating frequency band low noise amplifier, and a first operating frequency band power amplifier, the first front end circuit being connected to the first antenna; a second front end circuit including a first operating frequency band low noise amplifier, a second operating frequency band low noise amplifier, and a second operating frequency band power amplifier, the second front end circuit being connected to the second antenna; a first switching circuit selectively connecting the first operating frequency band transmission port, the first operating frequency band primary reception port, and the second operating frequency band secondary reception port to the first front end circuit; and a second switching circuit selectively connecting the second operating frequency band transmission port, the first operating frequency band secondary reception port, and the second operating frequency band primary reception port to the second front end circuit; wherein the first antenna and the second antenna are distant from the transceiver, the first and second front end circuit are proximal to the respective one of the first and second antenna, and the first and second switching circuits are proximal to the transceiver. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A radio frequency (RF) communications system with a first operating frequency band and a second operating frequency band, the system comprising:
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a first antenna; a second antenna; a transceiver with a first operating frequency band primary transmission port, a second operating frequency band primary transmission port, a first operating frequency band primary reception port, and a second operating frequency band primary reception port; a first front end circuit with a first port coupled to the first antenna and a second port coupled to the transceiver, the first front end circuit including a first operating frequency band low noise amplifier, a second operating frequency band low noise amplifier, a first operating frequency band power amplifier, and a second operating frequency band power amplifier; a first switching circuit selectively connecting the first operating frequency band primary transmission port, the first operating frequency band primary reception port, the second operating frequency band primary transmission port, and the second operating frequency band secondary reception port to the second port of the first front end circuit; and wherein the first antenna and the second antenna are distant from the transceiver, the first front end circuit is proximal to the first and second antenna, and the first switching circuit is proximal to the transceiver. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37)
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38. An RF front end circuit for coupling a transceiver with a first operating frequency band and a second operating frequency band to an antenna, the front end circuit comprising:
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an antenna port; a first operating frequency band transmission port; a second operating frequency band transmission port; a first operating frequency band reception port; a second operating frequency band reception port; a first operating frequency band transmit-receive block including; a first operating frequency band power amplifier coupled to the first operating frequency band transmission port; and a first operating frequency band low noise amplifier coupled to the first operating frequency band reception port; a first operating frequency band switching network connected to the first operating frequency band power amplifier and the first operating frequency band low noise amplifier, the first operating frequency band switching network including at least one resonant circuit defining a parallel resonance with a resonant resistance in an activated state; a second operating frequency band transmit-receive block including; a second operating frequency band power amplifier coupled to the second operating frequency band transmission port; a second operating frequency band low noise amplifier coupled to the second operating frequency band reception port; and a second operating frequency band switching network connected to the second operating frequency band power amplifier and the second operating frequency band low noise amplifier, the second operating frequency band switching network including a resonant circuit defining a parallel resonance with a resonant resistance in an activated state; wherein the first operating frequency band switching network and the second operating frequency band matching network are connected to the antenna port. - View Dependent Claims (39, 40, 41, 42, 43, 44, 45)
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Specification