Communications receiver using multi-band transmit blocking filters
First Claim
1. A communications receiver comprising:
- a low noise amplifier;
a multi-band transmit blocking filter having a first port connected to an output of the low noise amplifier; and
an RF analog-to-digital converter having an input connected to a second port of the multi-band transmit blocking filter, whereinthe multi-band transmit filter is configured topass the receive frequencies of a group of two or more LTE (long term evolution) bands, where a first receive frequency range of a first band in the group and a second receive frequency range of a second band in the group are disjoint and not subsets of a receive frequency range of a third band in the group, andattenuate the transmit frequencies of at least some bands in the group by at least twenty dB.
2 Assignments
0 Petitions
Accused Products
Abstract
Communications receivers and devices are disclosed. A communications receiver includes a low noise amplifier; a multi-band transmit blocking filter having a first port connected to an output of the low noise amplifier, and an RF analog-to-digital converter having an input connected to a second port of the multi-band transmit blocking filter. The multi-band transmit filter passes the receive frequencies of a group of two or more LTE bands, where a first receive frequency range of a first band in the group and a second receive frequency range of a second band in the group are disjoint and not subsets of a receive frequency range of a third band in the group, and attenuates the transmit frequencies of at least some bands in the group by at least twenty dB.
-
Citations
24 Claims
-
1. A communications receiver comprising:
-
a low noise amplifier; a multi-band transmit blocking filter having a first port connected to an output of the low noise amplifier; and an RF analog-to-digital converter having an input connected to a second port of the multi-band transmit blocking filter, wherein the multi-band transmit filter is configured to pass the receive frequencies of a group of two or more LTE (long term evolution) bands, where a first receive frequency range of a first band in the group and a second receive frequency range of a second band in the group are disjoint and not subsets of a receive frequency range of a third band in the group, and attenuate the transmit frequencies of at least some bands in the group by at least twenty dB. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
-
-
13. A communications device, comprising:
-
a low bands receiver configured to receive one or more LTE (long term evolution) bands between 700 MHz and 1 GHz, the low bands receiver comprising; a low bands low noise amplifier, a low bands transmit blocking filter having a first port connected to an output of the low bands low noise amplifier, and a low bands RF analog-to-digital converter having an input connected to a second port of the low bands transmit blocking filter; and a mid bands receiver configured to receive one or more LTE (long term evolution) bands between 1.7 GHz and 2.2 GHz, the mid bands receiver comprising; a mid bands low noise amplifier, a mid bands transmit blocking filter having a first port connected to an output of the mid bands low noise amplifier, and a mid bands RF analog-to-digital converter having an input connected to a second port of the mid bands transmit blocking filter. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
-
Specification