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What is a telephone handset amplifier? 

Bandwidth (signal processing)
Telephone line
Antenna efficiency
Amplifier
Handset

Answers from top 10 papers

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Papers (10)Insight
Journal Article•DOI
Cordless telephone system and its propagation characteristics
K. Tsujimura, M. Kuwabara 
01 Nov 1977-IEEE Transactions on Vehicular Technology
15 Citations
Therefore, it can be considered to be a partial realization of a portable telephone system.
Journal Article•DOI
Fundamental considerations in the design of a voice-switched speakerphone
A. Busala
01 Mar 1960-Bell System Technical Journal
16 Citations
The speakerphone offers the advantage of hands-free telephony by replacing the familiar handset with a separate microphone and loudspeaker.
Open access•Journal Article•DOI
A Novel Cellular Handset Design for an Enhanced Antenna Performance and a Reduced SAR in the Human Head
Salah I. Al-Mously, Marai M. Abousetta 
18 May 2008-International Journal of Antennas and Propagation
16 Citations
The results show that the proposed handset has a significant improvement of antenna efficiency when it is hand-held close to head, as compared with the handset of top-mounted antenna.
Proceedings Article•DOI
High-efficiency silicon RF power amplifier design – current status and future outlook
Donald Y.C. Lie, J. Tsay, T. Hall, T. Nukala, J. Lopez 
01 Aug 2016
18 Citations
), which can translate to lower cost and smaller sizes attractive for broadband multi-mode multi-band handset transmitters.
Proceedings Article•DOI
Low distortion high power GaAs pseudomorphic heterojunction FETs for L/S-band digital cellular base stations
I. Takenaka, K. Ishikura, H. Takahashi, K. Asano, M. Kanamori 
11 Jun 2000
10 Citations
The developed amplifier is suitable for digital cellular base station system applications.
Journal Article•DOI
The Telephone as a Computer Input-Output Terminal for Medical Information
Scott I. Allen
28 Apr 1969-JAMA
13 Citations
The standard telephone is convenient, reliable, economical and effective as a computer input-output terminal.
Open access•Proceedings Article•DOI
Multiband handset antennas by means of groundplane modification
Jaume Anguera, A. Cabedo, Cristina Picher, I. Sanz, Miquel Ribo, Carles Puente 
09 Jun 2007
40 Citations
 for antenna efficiency show that the proposed technique can be applied to design multi-band antennas for handset phones.
Open access•Journal Article•DOI
A capacitively loaded PIFA for compact mobile telephone handsets
Corbett Rowell, Ross D. Murch 
01 May 1997-IEEE Transactions on Antennas and Propagation
376 Citations
A design with a bandwidth of 178 MHz centered at 1.8 GHz is provided to demonstrate that compact antennas for mobile telephone handsets can be constructed using this approach.
Proceedings Article•DOI
Experimental study on compact, high-gain, low SAR single- and dual-band patch antenna for cellular telephones
J. Johnson, Shyam S. Pattnaik, Om P. Gandhi 
21 Jun 1998
13 Citations
Results show that these antennas, mounted on a box simulating the handset, are characterized by radiating performance comparable to, or better than, typical cellular telephones.
Journal Article•DOI
Hands-free telephones: joint control of echo cancellation and postfiltering
Eberhard Hänsler, Gerhard Schmidt 
01 Nov 2000-Signal Processing
79 Citations
Furthermore, it was possible to provide natural communication with hands-free telephone systems.

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