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Dipole Antenna With Integrated Balun For Ultra-wideband Radio 6-9 GHz
Linköping University, Department of Science and Technology. Linköping University, The Institute of Technology.
Linköping University, Department of Science and Technology. Linköping University, The Institute of Technology.
Linköping University, Department of Science and Technology. Linköping University, The Institute of Technology.
Linköping University, Department of Science and Technology. Linköping University, The Institute of Technology.ORCID iD: 0000-0003-2117-1178
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2011 (English)In: Microwave and optical technology letters (Print), ISSN 0895-2477, E-ISSN 1098-2760, Vol. 53, no 1, 180-184 p.Article in journal (Refereed) Published
Abstract [en]

A fully integrated dipole antenna with a balun fot ulna wideband (UWB) radio in the band 6-9 GHz utilizing a flexible and rigid printed count board is presented in this at tide The balun utilizes broadside coupled microstrips and is integrated in the rigid part of the printed coma boat d whereas the radiator is placed in the flexible pat! The antenna with the balun covets the frequency band 6 0-8 5 GHz at voltage standing mate ratio (VSWR) andlt;2 0 and 55-110 GHz at VSWR andlt; 2 5 Moreover simulated and measured radiation patterns and antenna efficiency above 860% are observed

Place, publisher, year, edition, pages
John Wiley and Sons, Ltd , 2011. Vol. 53, no 1, 180-184 p.
Keyword [en]
balun, broadside, coupled, dipole antenna, ultra wideband
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:liu:diva-64238DOI: 10.1002/mop.25656ISI: 000285231200050OAI: oai:DiVA.org:liu-64238DiVA: diva2:388124
Available from: 2011-01-17 Created: 2011-01-17 Last updated: 2017-12-11Bibliographically approved
In thesis
1. Differential Six-port Radio Transceiver for Ultra-wideband and Wideband Antennas
Open this publication in new window or tab >>Differential Six-port Radio Transceiver for Ultra-wideband and Wideband Antennas
2011 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

Requirement for high speed wireless connectivity is propelling research in advanced communication systems. Low power and wide bandwidth of the ultra-wideband technology makes it a potential candidate for high speed data transmission. The six-port based radio systems and wideband antennas have been studied and presented in this dissertation for ultra-wideband applications.

The six-port modulator operation with carrier leakage suppression was demonstrated at a center frequency of 7.5 GHz. The six-port correlator utilizes a quarter wavelength transmission line for carrier leakage suppression, together with diodes or eld effect transistors as variable impedance terminations. Especially, a differential six-port modulator was designed and veried through simulation and measurement. The prototype shows its capability of carrier leakage suppression and high speed data transmission with 256-quadrature amplitude modulation at 50 Msymbol/s at the center frequency of 7.5 GHz. Furthermore, a differential six-port demodulator was demonstrated with the 16 quadrature amplitude modulation at a data rate of 0.8 Gbit/s at the center frequency of 7.5 GHz. It uses zero-bias anti-parallel Schottky diodes as power detectors.

Flexible antennas were designed such that they can be housed by folding it around in space limited environment with stable performance over a wide operation bandwidth. Measurement, on a exible dipole antenna with integrated balun, shows that it covers a frequency band from 6 to 11 GHz at a voltage standing wave ratio lower than 2.5 with the antenna eciency above 86%. A miniaturized monopole antenna that is not only capable of operating over an ultra-wideband but also for lower frequency bands was invented and veried. It covers a frequency range from 1.35 to 11.5 GHz. It gives a quasi-omnidirectional radiation pattern and high eciency. The antenna has a patent pending status with the United States Patent and Trademark Oce.

Place, publisher, year, edition, pages
Linköping: Linköping University Electronic Press, 2011. 71 p.
Series
Linköping Studies in Science and Technology. Dissertations, ISSN 0345-7524 ; 1403
National Category
Engineering and Technology
Identifiers
urn:nbn:se:liu:diva-71837 (URN)978-91-7393-052-9 (ISBN)
Public defence
2011-12-01, TP51, Tappan, Campus Norrköping, Norrköping, Norrköping, 10:00 (English)
Opponent
Supervisors
Available from: 2011-11-07 Created: 2011-11-07 Last updated: 2011-11-07Bibliographically approved

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Karlsson, MagnusOwais, OwaisÖsth, JoakimSerban, AdrianaGong, Shaofang

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