RF Receiver Front-End Topologies for Software Radios

Reed, Jeffrey H.
July 2008
Portable Design;Jul2008, Vol. 14 Issue 7, p22
The article explores the trade-offs involved with a number of different radio frequency front-end topologies for software radios. The most common types of radio frequency front-ends for software radios include dual conversion, single conversion and tuned radio frequency receivers. It is stated that the suitability of a particular receiver topology depends on its sensitivity, selectivity, stability, dynamic range and spurious response. It is pointed out that the designer needs to weigh the multitude of combinations before arriving at the optimal design, and added that the trade-off occurs between sensitivity and selectivity.


Related Articles

  • High Precision Spectrum Sensing for Cognitive Radio using Hidden Markov Model. Vadivelu, R.; Sankaranarayanan, K.; Aswathy, T. // International Journal of Computer Applications;8/1/2012, Vol. 51, p20 

    Efficiency of the wireless communication depends mainly on how the Radio Frequency (RF) spectrum is allocated to the end users. Inadequacy of the RF spectrum resource transpires due to fixed frequency allocation by the regulatory bodies in each region is one of the major problems in allocating...

  • Sampling SDRs For Tactical Applications. BROWNE, JACK // Microwaves & RF;Jul2012, Vol. 51 Issue 7, pS26 

    The article offers information on software-defined radios (SDRs), and its application for different standards. It states that SDRs rely on a minimal number of microwave components to receive and transmit radio signals. It mentions that SDRs for tactical applications are typically designed as...

  • EWA Selection Strategy with Channel Handoff Scheme in Cognitive Radio. SUN, Yong; QIAN, Jian-sheng // Wireless Personal Communications;Mar2016, Vol. 87 Issue 1, p17 

    Experience-Weighted Attraction (EWA) learning allows Cognitive Radio (CR) to learn radio environment communication channel characteristics online. An improved EWA selection strategy based on channel switch mechanism is proposed in this paper to meet CR application's practical requirement. By...

  • Irish universities to undertake radio research work with 50MHz allocation. Yeates, Harry // Electronics Weekly;2/8/2006, Issue 2227, p5 

    The article reports that technologies and techniques for the dynamic distribution and regulation of radio spectrum are to be developed in Ireland. The decision of its development has come after the allocation of 50MHz for experimental work by ComReg, the regulator of Great Britain. The...

  • Intelligent radio: Are we there yet? Jackson, Donny // Mobile Radio Technology;Dec2007, Vol. 25 Issue 12, p52 

    The article discusses the relevance of the proposed advancement of radio spectrum technologies in the U.S. According to the author, cognitive radio and software-defined radio (SDR) will be introduced by 2008 wherein it could change the perception and understanding of airwaves. On the other hand,...

  • Scheduling Heterogeneous Wireless Systems for Efficient Spectrum Access. Lichun Bao; Shenghui Liao // EURASIP Journal on Wireless Communications & Networking;2010, Special section p1 

    The spectrum scarcity problem emerged in recent years, due to unbalanced utilization of RF (radio frequency) bands in the current state of wireless spectrum allocations. Spectrum access scheduling addresses challenges arising from spectrum sharing by interleaving the channel access among...

  • Software Defined Radios: Flexibility for the SCADA Market. Livdahl, Lisa // Remote Site & Equipment Management;Spring2013, Vol. 13 Issue 1, p12 

    The article focuses on the software defined radio (SDR) technology as an option in selecting a wireless radio network. SDR combines highly modifiable hardware and controlling software, forming a sophisticated radio frequency (RF) device that process all incoming and outgoing RF signals in...

  • Time is on RFID's side. Panettieri, Joseph C. // eWeek;1/12/2004, Vol. 21 Issue 2, pS1 

    Radio-frequency identification (RFID) technology involves tags and readers that track goods through the supply chain, enabling tighter inventory control and real-time product routing to meet ever-changing consumer demands. In the Consumer Packaged Goods manufacturing sector, RFID can improve...

  • Transforming radio communications. Keller, John // Military & Aerospace Electronics;May2005, Vol. 16 Issue 5, p1 

    The article informs that one of the most pressing issues of wireless communications is managing the finite radio frequency (RE) spectrum that is in such heavy and growing demand for cellular telephone, land-mobile radio, commercial broadcasting, and other RE applications. For their part,...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics