Low-impedance transmitter antenna for multi-antenna WCDMA handsets
(2004) IEEE Vehicular Technology Conference, VTC Fall, 2004 p.220-224- Abstract
- The possibility of building compact, low-ohmic antennas suitable for mobile handsets is investigated. An F-antenna is built with a self-impedance of 10 Ω instead of the commonly used 50 Ω. Low impedance is chosen to minimize voltages in circuits prior to the antenna, in this case an adaptive matching network designed in CMOS or a similar process. To optimize this adaptive matching network, the antenna structure is two-fold: one antenna for transmission and one for reception. A resulting benefit is increased isolation between transmitter and receiver, as shown for a typical case. The 10 Ω antenna has an average efficiency of over 70% and an omnidirectional pattern; isolation increases by distance and reaches about 10dB at 4 cm
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/613927
- author
- Sjöblom, Peter LU
- organization
- publishing date
- 2004
- type
- Chapter in Book/Report/Conference proceeding
- publication status
- published
- subject
- keywords
- circuit optimization, CMOS, adaptive matching network, self-impedance, F-antenna, mobile handsets, compact low-ohmic antennas, low-impedance transmitter antenna, multi-antenna WCDMA handsets, transmitting antenna, receiving antenna, isolation, omnidirectional pattern
- host publication
- 2004 IEEE 60th Vehicular Technology Conference. VTC2004-Fall (IEEE Cat. No.04CH37575)
- pages
- 220 - 224
- publisher
- IEEE - Institute of Electrical and Electronics Engineers Inc.
- conference name
- IEEE Vehicular Technology Conference, VTC Fall, 2004
- conference location
- Los Angeles, CA, United States
- conference dates
- 2004-09-26 - 2004-09-29
- external identifiers
-
- wos:000227931900046
- scopus:17144378989
- ISBN
- 0-7803-8521-7
- language
- English
- LU publication?
- yes
- id
- a65738cb-d120-4ae7-9180-0d6db9ea2c80 (old id 613927)
- date added to LUP
- 2016-04-04 11:07:06
- date last changed
- 2024-06-22 22:03:31
@inproceedings{a65738cb-d120-4ae7-9180-0d6db9ea2c80, abstract = {{The possibility of building compact, low-ohmic antennas suitable for mobile handsets is investigated. An F-antenna is built with a self-impedance of 10 Ω instead of the commonly used 50 Ω. Low impedance is chosen to minimize voltages in circuits prior to the antenna, in this case an adaptive matching network designed in CMOS or a similar process. To optimize this adaptive matching network, the antenna structure is two-fold: one antenna for transmission and one for reception. A resulting benefit is increased isolation between transmitter and receiver, as shown for a typical case. The 10 Ω antenna has an average efficiency of over 70% and an omnidirectional pattern; isolation increases by distance and reaches about 10dB at 4 cm}}, author = {{Sjöblom, Peter}}, booktitle = {{2004 IEEE 60th Vehicular Technology Conference. VTC2004-Fall (IEEE Cat. No.04CH37575)}}, isbn = {{0-7803-8521-7}}, keywords = {{circuit optimization; CMOS; adaptive matching network; self-impedance; F-antenna; mobile handsets; compact low-ohmic antennas; low-impedance transmitter antenna; multi-antenna WCDMA handsets; transmitting antenna; receiving antenna; isolation; omnidirectional pattern}}, language = {{eng}}, pages = {{220--224}}, publisher = {{IEEE - Institute of Electrical and Electronics Engineers Inc.}}, title = {{Low-impedance transmitter antenna for multi-antenna WCDMA handsets}}, year = {{2004}}, }