N-plexer systems and methods for use in a wireless communications device
First Claim
Patent Images
1. A wireless communication device comprising:
- an antenna;
a low noise amplifier (LNA) configured to amplify signals within a plurality of frequency bands comprising a first frequency band, a second frequency band, and a GPS frequency band; and
a N-plexer connected between the antenna and the LNA, the N-plexer comprising;
a first frequency receive filter configured to pass first signals received through the antenna within the first frequency band to the LNA and to attenuate at least some signals outside of the first frequency band;
a second frequency receive filter configured to pass second signals received through the antenna within the second frequency band to the LNA and attenuate at least some signals outside of the second frequency band;
a GPS frequency receive filter configured to pass GPS signals received through the antenna within the GPS frequency band to the LNA and attenuate at least some signals outside of the GPS frequency band;
a first frequency transmit filter configured to pass first transmission signals within the first frequency band from a first transmit signal path to the antenna; and
a second frequency transmit filter configured to pass second transmission signals within the second frequency band from a second transmit path to the antenna.
2 Assignments
0 Petitions
Accused Products
Abstract
A wireless communication device comprises an N-plexer, that is, a multi-band device, connected to a single antenna for receiving multiple communication bands on the single antenna. The N-plexer includes a receive band pass filter of a receive signal path to receive a signal in a certain frequency bandwidth for each of the multiple of communication bands. The N-plexer also includes a GPS receiver filter for receiving GPS signals. The communication device also comprises an amplifier coupled with each of the plurality of receive signal paths. The amplifier is configured to amplify the receive signals associated with each of the plurality of receive signal paths.
-
Citations
19 Claims
-
1. A wireless communication device comprising:
-
an antenna; a low noise amplifier (LNA) configured to amplify signals within a plurality of frequency bands comprising a first frequency band, a second frequency band, and a GPS frequency band; and a N-plexer connected between the antenna and the LNA, the N-plexer comprising; a first frequency receive filter configured to pass first signals received through the antenna within the first frequency band to the LNA and to attenuate at least some signals outside of the first frequency band; a second frequency receive filter configured to pass second signals received through the antenna within the second frequency band to the LNA and attenuate at least some signals outside of the second frequency band; a GPS frequency receive filter configured to pass GPS signals received through the antenna within the GPS frequency band to the LNA and attenuate at least some signals outside of the GPS frequency band; a first frequency transmit filter configured to pass first transmission signals within the first frequency band from a first transmit signal path to the antenna; and a second frequency transmit filter configured to pass second transmission signals within the second frequency band from a second transmit path to the antenna. - View Dependent Claims (2, 3, 4, 5, 6, 7)
-
-
8. A wireless communication device comprising:
-
an antenna; a low noise amplifier (LNA) configured to amplify signals within a plurality of frequency bands comprising a high frequency band, a mid frequency band, and a low frequency band; and a N-plexer connected to the antenna and the LNA, the N-plexer comprising; a first communication port connected to an input-output line, the first communication port comprising; a first transmit filter configured to operate at the high frequency band to communicate a first transmit signal from a first transmit signal line to the antenna; and a first receive filter configured to operate at the high frequency band to communicate a first receive signal from the antenna to the LNA; a second communication port connected to the input-output line comprising; a second receive filter configured to operate at the mid frequency band corresponding to a GPS frequency, the second receive filter passing a second receive signal from the antenna to the LNA; and a third communication port connected to the input-output line, the third communication port comprising; a third transmit filter configured to operate at the low frequency band to communicate a third transmit signal from a third transmit signal line to the antenna; and a third receive filter configured to operate at the low frequency band to communicate a third receive signal from the antenna to the LNA. - View Dependent Claims (9, 10, 11, 12, 13, 14)
-
-
15. A wireless communication device, comprising:
-
an antenna circuit configured to communicate signals of at least three communication bands; a low noise amplifier (LNA) configured to amplify signals within a plurality of frequency bands comprising a high frequency band having a center frequency of approximately 1800 MHz, a GPS frequency band having a center frequency of approximately 1575 MHz, and a low frequency band having a center frequency of approximately 800 MHz; GPS receiver circuitry; and a single component N-plexer having a plurality of filters, the N-plexer comprising; a communication line electrically coupled to the antenna circuit; a first communication port connected to the communication line, the first communication port comprising; a first transmit filter of the plurality of filters configured to operate at the high frequency band, the first transmit filter filtering a first transmit signal from a first transmit signal line to the antenna circuit; and a first receive filter of the plurality of filters configured to operate at the high frequency band, the first receive filter filtering a first receive signal from the antenna circuit to a receive signal line connected to the LNA; a second communication port connected to the communication line, comprising; a second receive filter of the plurality of filters configured to operate at the GPS frequency band, the second receive filter filtering a second receive signal from the antenna circuit to the receive signal line connected to the LNA; and a third communication port connected to the communication line, the third communication port comprising; a third transmit filter of the plurality of filters configured to operate at the low frequency band, the third transmit filter filtering a third transmit signal from a transmit signal line to the antenna circuit; and a third receive filter of the plurality of filters configured to operate at the low frequency band, the third receive filter filtering a third receive signal from the antenna circuit to the LNA. - View Dependent Claims (16, 17, 18, 19)
-
Specification