Electromagnetic Sensitivity Analysis of RF Front End of Software Defined Radio

2021 ◽  
Author(s):  
Shuang Li ◽  
Changlin Zhou ◽  
Dongyao Zhang ◽  
Daojie Yu ◽  
Kai He ◽  
...  
Keyword(s):  
Sensitivity Analysis ◽  
Software Defined Radio ◽  
Front End ◽  
Rf Front End

scholarly journals A 0.1-2 GHZ LOW POWER FOLDED RF FRONT-END WITH MERGED LNA AND MIXER FOR SOFTWARE-DEFINED RADIO APPLICATIONS

2013 ◽  
pp. 289-292
Author(s):  
MANJULA. K ◽  
PRATHIBHA. S. K
Keyword(s):  
Low Power ◽  
Software Defined Radio ◽  
Frequency Synthesizer ◽  
Noise Figure ◽  
Supply Voltage ◽  
Cmos Technology ◽  
Power Performance ◽  
Front End ◽  
Rf Front End ◽  
Quadrature Signals

In this paper, A Software-Defined Radio (SDR) RF front-end is presented that contains merged LNA and mixers, VGAs, and frequency synthesizer, supporting various wireless communication standards in 0.1-2 GHz while guaranteeing a power/performance trade-off at any time. The proposed low power RF front-end uses the folded and current reuse techniques. for 0.18 um RF CMOS technology with 1.8V supply voltage. In the receive path the proposed design achieves a Noise Figure of 3.8 dB at 160 MHz and 5.5 dB at 2GHz. The Output-referred 3rd-order Intercept Point (OIP3) is high up to 21.3 dBm at 800 MHz. The voltage gain of the front- end is between 16-44 dB. The phase mismatch of LO quadrature signals is lower than 3deg.It consumes 13.8 mW at the 1.7V supply.

Wideband RF front end design considerations for a flexible white space software defined radio

2010 ◽  
Author(s):  
S.M. Shajedul Hasan ◽  
Randall Nealy ◽  
Terrence J. Brisebois ◽  
Timothy R. Newman ◽  
Tamal Bose ◽  
...  
Keyword(s):  
Software Defined Radio ◽  
White Space ◽  
Design Considerations ◽  
Front End ◽  
Rf Front End

scholarly journals Measurements of Signal Delays in Software Defined Radio with Use of GNSS Modules

2019 ◽  
Vol 26 (1) ◽  
pp. 98-105 ◽  
Author(s):  
Oskar Mężyk ◽  
Michał Doligalski ◽  
Ryszard Rybski
Keyword(s):  
Software Defined Radio ◽  
Low Cost ◽  
Reference Time ◽  
Positioning Errors ◽  
Front End ◽  
Rf Front End ◽  
Custom Software ◽  
Total Latency ◽  
Relative Delay ◽  
Signal Path

Abstract In the work a method of latency measurement in software defined radio (SDR) is proposed and validated. The test setup uses customer grade GNSS modules as reference time sources and enables relative delay calculation between signals received directly and those bypassed through SDR platform. The method is hardware agnostic in a sense, that it does not involve any custom software or hardware modifications. Tests that compare reported carrier-to-noise ratio and positioning errors were performed to prove functionality of such system. Additionally, authors measured several gnuradio blocks with respect to their impact on total latency introduced into signal path. All tests were performed on a bladeRF low-cost RF front-end. Minimum observed latency for the signal was below 10 ms.

Functional RF Devices Powered by MEMS Technologies

2012 ◽  
Vol 81 ◽  
pp. 75-83 ◽  
Author(s):  
Ken Ya Hashimoto ◽  
Hideki Hirano ◽  
Shuji Tanaka ◽  
Masayoshi Esashi
Keyword(s):  
Acoustic Wave ◽  
Software Defined Radio ◽  
Communication Systems ◽  
Research Trends ◽  
Bulk Acoustic Wave ◽  
Wireless Communication Systems ◽  
Front End ◽  
Rf Front End ◽  
Key Technologies ◽  
Rf Devices

This paper discusses use of MEMS technologies in radio frequency (RF) frontend. First, configuration of RF front-end in current wireless communication systems is surveyed, and research trends of the flexible RF front-end and software defined radio (SDR) are discussed. Second, various RF tunable filters are introduced, and we discuss how high performances are expected by the use of tunable RF surface and bulk acoustic wave (SAW/BAW) filters provided that above mentioned key technologies are developed. Finally, our attempts for realization of tunable RF SAW/BAW filters are introduced.

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