Thermal loss and soldering effect study of high-Q antennas in handheld devices

Pevand Bahramzy; Ole Jagielski; Gert Frølund Pedersen

Thermal loss and soldering effect study of high-Q antennas in handheld devices

Pevand Bahramzy, Ole Jagielski, Gert Frølund Pedersen

Department of Electronic Systems

Research output: Contribution to book/anthology/report/conference proceeding › Article in proceeding › Research › peer-review

7 Citations (Scopus)

450 Downloads (Pure)

Abstract

High-Q antennas are attractive because, besides being narrow-band, they have the advantage of being more compact and therefore occupy less volume in a mobile device. However, they can become very lossy especially at lower frequencies. In
this paper it is investigated how low a thermal loss, in a very good conductor as copper, may be achieved. The effect from solderings on the antenna efficiency is also investigated and the effect has shown to be small. The resistance value, based on the extra loss due to the solderings, is estimated to be 0.25 Ohm. It is also shown that two different high-Q antennas, having the same Q value, can have difference in efficiency. Furthermore, it is discussed why it is so difficult to compare the electrical size and volume of different antenna types.

Original language	English
Title of host publication	Antennas and Propagation (EuCAP), 2013 7th European Conference on
Number of pages	4
Publisher	IEEE
Publication date	8 Apr 2013
Pages	878 - 881
ISBN (Print)	978-1-4673-2187-7
ISBN (Electronic)	978-88-907018-1-8
Publication status	Published - 8 Apr 2013
Event	7th European Conference on Antennas and Propagation (EuCAP) - Swedish Exhibition & Congress Centre, Gothenburg, Sweden Duration: 8 Apr 2013 → 12 Apr 2013

Conference

Conference	7th European Conference on Antennas and Propagation (EuCAP)
Location	Swedish Exhibition & Congress Centre
Country/Territory	Sweden
City	Gothenburg
Period	08/04/2013 → 12/04/2013

Keywords

High-Q antenna
Soldering
Thermal loss
Efficiency

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Thermal Loss and Soldering Effect Study of High-Q Antennas in Handheld DevicesFinal published version, 4.73 MB

http://ieeexplore.ieee.org/xpl/login.jsp?tp=&arnumber=6546408

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Cite this

@inproceedings{9ea51da7dc234dfe98963b3803656d22,

title = "Thermal loss and soldering effect study of high-Q antennas in handheld devices",

abstract = "High-Q antennas are attractive because, besides being narrow-band, they have the advantage of being more compact and therefore occupy less volume in a mobile device. However, they can become very lossy especially at lower frequencies. Inthis paper it is investigated how low a thermal loss, in a very good conductor as copper, may be achieved. The effect from solderings on the antenna efficiency is also investigated and the effect has shown to be small. The resistance value, based on the extra loss due to the solderings, is estimated to be 0.25 Ohm. It is also shown that two different high-Q antennas, having the same Q value, can have difference in efficiency. Furthermore, it is discussed why it is so difficult to compare the electrical size and volume of different antenna types.",

keywords = "High-Q antenna, Soldering, Thermal loss, Efficiency",

author = "Pevand Bahramzy and Ole Jagielski and Pedersen, {Gert Fr{\o}lund}",

year = "2013",

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day = "8",

language = "English",

isbn = "978-1-4673-2187-7 ",

pages = "878 -- 881",

booktitle = "Antennas and Propagation (EuCAP), 2013 7th European Conference on",

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address = "United States",

note = "7th European Conference on Antennas and Propagation (EuCAP) ; Conference date: 08-04-2013 Through 12-04-2013",

}

Bahramzy, P, Jagielski, O & Pedersen, GF 2013, Thermal loss and soldering effect study of high-Q antennas in handheld devices. in Antennas and Propagation (EuCAP), 2013 7th European Conference on . IEEE, pp. 878 - 881, 7th European Conference on Antennas and Propagation (EuCAP), Gothenburg, Sweden, 08/04/2013. <http://ieeexplore.ieee.org/xpl/login.jsp?tp=&arnumber=6546408>

TY - GEN

T1 - Thermal loss and soldering effect study of high-Q antennas in handheld devices

AU - Bahramzy, Pevand

AU - Jagielski, Ole

AU - Pedersen, Gert Frølund

PY - 2013/4/8

Y1 - 2013/4/8

N2 - High-Q antennas are attractive because, besides being narrow-band, they have the advantage of being more compact and therefore occupy less volume in a mobile device. However, they can become very lossy especially at lower frequencies. Inthis paper it is investigated how low a thermal loss, in a very good conductor as copper, may be achieved. The effect from solderings on the antenna efficiency is also investigated and the effect has shown to be small. The resistance value, based on the extra loss due to the solderings, is estimated to be 0.25 Ohm. It is also shown that two different high-Q antennas, having the same Q value, can have difference in efficiency. Furthermore, it is discussed why it is so difficult to compare the electrical size and volume of different antenna types.

AB - High-Q antennas are attractive because, besides being narrow-band, they have the advantage of being more compact and therefore occupy less volume in a mobile device. However, they can become very lossy especially at lower frequencies. Inthis paper it is investigated how low a thermal loss, in a very good conductor as copper, may be achieved. The effect from solderings on the antenna efficiency is also investigated and the effect has shown to be small. The resistance value, based on the extra loss due to the solderings, is estimated to be 0.25 Ohm. It is also shown that two different high-Q antennas, having the same Q value, can have difference in efficiency. Furthermore, it is discussed why it is so difficult to compare the electrical size and volume of different antenna types.

KW - High-Q antenna

KW - Soldering

KW - Thermal loss

KW - Efficiency

M3 - Article in proceeding

SN - 978-1-4673-2187-7

SP - 878

EP - 881

BT - Antennas and Propagation (EuCAP), 2013 7th European Conference on

PB - IEEE

T2 - 7th European Conference on Antennas and Propagation (EuCAP)

Y2 - 8 April 2013 through 12 April 2013

ER -

Thermal loss and soldering effect study of high-Q antennas in handheld devices

Abstract

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Keywords

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