Download Linearization and Efficiency Enhancement Techniques for by Eric Kerhervé, Didier Belot PDF

By Eric Kerhervé, Didier Belot

This booklet offers an outline of present potency enhancement and linearization recommendations for silicon strength amplifier designs. It examines the most recent state-of-the-art applied sciences and layout concepts to deal with demanding situations for RF mobile cellular, base stations, and RF and mmW WLAN functions. insurance contains fabric on present silicon (CMOS, SiGe) RF and mmW strength amplifier designs, targeting merits and downsides in comparison with conventional GaAs implementations.

With this e-book you are going to learn:

  • The ideas of linearization and potency development techniques
  • The architectures permitting the optimal layout of multimode Si RF and mmW strength amplifiers
  • How to make designs extra effective by way of utilising new layout options reminiscent of linearization and potency improvement
  • Layout considerations
  • Examples of schematic, format, simulation and size results
  • Addresses the issues of excessive strength iteration, devoted development of non-constant envelope constellations, and effective and good keep an eye on strength radiation from built-in silicon chips
  • Demonstrates how silicon know-how can resolve difficulties and trade-offs of strength amplifier layout, together with cost, measurement, complexity and efficiency
  • Written and edited via the pinnacle participants to the field

Show description

Read or Download Linearization and Efficiency Enhancement Techniques for Silicon Power Amplifiers: From RF to mmW PDF

Similar radio operation books

Ultra-wideband radio technology

Ultra-wideband (UWB) has been one of the so much arguable applied sciences of contemporary instances. Its functions appear never-ending, its features striking and but it's so poorly understood. during this quantity, the authors mix abilities to de-mystify ultra-wideband radio and clarify it in language that's available to non-technologists in addition to technologists.

SMS and MMS Interworking in Mobile Networks

SMS (short message carrier) and MMS (multimedia message provider) are of the most popular companies in instant communications this present day, providing shoppers fascinating how you can speak by means of sending textual content and multimedia messages. This entire e-book bargains instant engineers and bosses useful tips within the making plans and implementation of SMS and MMS prone with interworking (the skill to effectively ship a message while the beginning and vacation spot mobile telephones don't use a similar instant operator).

Communications, Radar and Electronic Warfare

A pragmatic consultant to the rules of radio communications for either civilian and army applicationsIn this booklet, the writer covers either the civilian and armed forces makes use of of expertise, focusing rather at the purposes of radio propagation and prediction. Divided into components, the writer introduces the elemental concept of radio prediction prior to offering a step by step clarification of ways this conception may be translated into real-life functions.

Digital mobile communications and the TETRA system

TETRA is a method for cellular instant communications and it is a hugely topical and entire creation to the layout and functions of TETRA platforms together with sensible examples. TETRA is analogous in constitution to the world-wide profitable GSM method, although, person gains of TETRA are diversified, frequently extra effective and higher designed than in GSM.

Additional resources for Linearization and Efficiency Enhancement Techniques for Silicon Power Amplifiers: From RF to mmW

Example text

9] Sengupta K, Dasgupta K, Bowers SM, HajimiriA. On-chip sensing and actuation methods for integrated self-healing mm-wave CMOS power amplifiers. In: IEEE MTT-S international microwave symposium digest; June 2012. p. 1À3. [10] Kang J, Hajimiri A, Kim B. 4 GHz WLAN. In: IEEE international solid-state circuits conferences technical digest; February 2006. p. 761À9. [11] Chowdhury D, Hull C, Degani O, Goyal P, Wang Y, Niknejad A. 4 GHz 30 dBm power amplifier in 90 nm CMOS. In: IEEE international solid-state circuits conferences technical digest; February 2009.

7, consists of first making the division of “Q” by “I”, and then going through an interpolation table (LUT) where the required values of the “atan” function are stored. LUT length is function of the phase estimation precision. Precision of 1 (required in the current study) leads to 1440 bits of ROM. Because of the symmetry properties of “atan” function, the LUT size can be limited to half [8]. Several architectures were proposed in the literature to implement the division, but the so-called Restoring Division Algorithm [18] was chosen because it enables higher working frequencies.

It is evident that the radiated field is circularly polarized due to the traveling wave nature of the signal generation. 2 Architecture To build large-scale arrays of such radiators to maximize the effective isotropic radiated power (EIRP) and to achieve beam steering for phased array applications, these DARs need to be mutually locked. Here, we demonstrate one such locking technique using transmission line networks and provide intuitive explanations for the same. If we place one coupling network between only two cross-coupled pairs, then it will ensure that they are driven in phase; however, the two DARs can still operate in opposite directions.

Download PDF sample

Rated 4.21 of 5 – based on 23 votes