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Signal receiver for wideband wireless communication

A signal receiver and broadband technology, applied in the field of signal receivers, can solve problems such as silicon IF filtering difficulties, achieve low complexity and improve quality

Inactive Publication Date: 2008-04-16
NXP BV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] So if the bandwidth is 4GHz and a zero IF architecture is employed, that results in a 2GHz bandwidth on the positive frequency side, which is almost entirely RF, making silicon IF filtering difficult

Method used

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  • Signal receiver for wideband wireless communication
  • Signal receiver for wideband wireless communication

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Embodiment Construction

[0026] Accordingly, the present invention provides a signal receiver that receives a broadband radio frequency signal and divides it into a plurality of sub-bands before performing parallel processing, followed by analog-to-digital processing for each sub-band in the analog domain. transform. The resulting signals are then combined to reconstruct the signal for further processing in the digital domain.

[0027] Referring to FIG. 1 , in the first exemplary embodiment, a radio signal 100 in the 60 GHz frequency band is received by an antenna 10 and delivered to a radio receiver 12 . As shown, the power spectral density (PSD) is centered on a carrier frequency of 61 GHz. A fully received radio frequency signal band 100 with a bandwidth of 4 GHz is down converted to an intermediate frequency signal band 102 by a radio frequency (RF) synthesizer in the radio receiver 12 . The RF synthesizer receives a local oscillator signal for this purpose from a voltage controlled oscillator 1...

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Abstract

A signal receiver for use in a 60 GHz wireless area network, in which the received RF signal band (100) is converted to a plurality of intermediate frequency (IF) sub-bands (104) and then processing (LPF, AGC, ADC) in the analogue domain of the sub-bands (104) is performed in parallel. As a result, the design requirements of the analogue components are significantly relaxed and it is possible to perform gain control in respect of each sub-band (104), which improves the quality of the received signal.

Description

technical field [0001] The present invention relates to a signal receiver for broadband wireless communication, more particularly but not necessarily exclusively to a signal receiver for use in a wireless local area network (WLAN) operating in the 60 GHz ISM band. Background technique [0002] Ultra-wideband (UWB) is an RF wireless technology and provides a technique for performing radiocommunications as well as radiolocation, which relies on the transmission of signals consisting of ultrashort pulses occupying frequencies from zero to one or more GHz Signal. These pulses represent from one cycle to only a few cycles of the RF carrier waveform. [0003] International Patent Application No. WO 2004 / 001998 describes an Ultra Wide Band (UWB) signal receiver comprising a filter bank for dividing a received RF signal into frequency sub-bands. The sub-band signals are then digitized using a relatively low sampling rate, then each digitized sub-band signal is transformed into the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B1/28H04B1/24H04B1/69
CPCH04B1/28H04B1/0092
Inventor 多米尼克斯·M·W·利纳尔特斯科内利斯·H·范贝克尔
Owner NXP BV