手机PCB天线(GSM,DCS)

yellowtoot

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Abstract—A novel planar monopole antenna with a very
low profile (antenna height less than 0.04 times the operating
wavelength in the free space) and capable of multiband operation
is proposed. The proposed antenna has a planar rectangular
radiating patch in which a folded slit is inserted at the patch’s
bottom edge. The folded slit separates the rectangular patch into
two subpatches, one smaller inner subpatch encircled by the
larger outer one. The proposed antenna is then operated with
the inner subpatch resonating as a quarter-wavelength structure
and the outer one resonating as both a quarter-wavelength and
a half-wavelength structure. The proposed antenna, 12 mm in
height and 30 mm in width has been constructed, and the obtained
bandwidths cover the global system for mobile communication
(890–960 MHz), digital communication system (1710–1880 MHz),
personal communication system (1850–1990 MHz), and universal
mobile telecommunication system (1920–2170 MHz) bands. Details
of the proposed design and obtained experimental results are
presented and discussed.

yellowtoot

<P>希望能抛砖引玉啊, 还请大家多多上传手机用的双频或三频PCB天线啊</P>[em05]

yellowtoot

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By introducing an extended conductor line to a rectangular meander
monopole, a novel compact dual-frequency monopole antenna is
proposed. The proposed antenna is fed using a 50 R CPW transmission
line, is printed in a single metal layer, and therefore is easily
constructed. The designed antenna can operate at 900 and 1 SO0 MHz
bands and provide sufficient bandwidths for the GSM and DCS
systems, respectively.

yellowtoot

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ABSTRACT: Two internal antennas for GSM/DCS and WLAN operations
printed and integrated on a dielectric substrate for application in
a dual-network PDA phone are presented. The two integrated antennas
are printed PIFAs mounted at the top edge of the main circuit board of
the PDA phone, and the isolation behavior of the two antennas with
various possible arrangements is studied. The optimized isolation between
the two antennas is analyzed. Over the GSM, DCS, and WLAN
bands, good isolation (less than
20 dB) between the two integrated
antennas can be obtained. &copy; 2005 Wiley Periodicals, Inc. Microwave
Opt Technol Lett 46: 323–326, 2005; Published online in Wiley Inter-
Science (www.interscience.wiley.com). DOI 10.1002/mop.20977

yellowtoot

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ABSTRACT: A planar meander-line antenna consisting of three branch
strips for very-low-profile GSM/DCS/PCS/WLAN triple-band operation
of mobile phones is presented. The branch strips are designed to operate
as quarter-wavelength structures at 900 and 1800 MHz, respectively,
and the obtained impedance bandwidths cover the required bandwidths
of the GSM (890–960 MHz), DCS/PCS (1710 –1880/1850–1990 MHz),
and WLAN (2400–2484 MHz) bands. The proposed antenna is 46.5 mm
in width and 11 mm in height, and can be mounted on top of a mobile
phone with a small distance of 2 mm to the ground plane, thus resulting
in a very low profile of 13 mm (less than 4% of the wavelength at 900
MHz) from the ground plane for the proposed antenna in practical applications.
The measured antenna-radiation patterns are approximately
omnidirectional at the three resonant frequencies. Peak antenna gains
for operating frequencies across the GSM/DCS/PCS/WLAN triple bands
are measured to be 1.1, 1.6, and 1.2 dBi, respectively, with gain variations
within 0.5 dBi. &copy; 2004 Wiley Periodicals, Inc. Microwave Opt
Technol Lett 41: 380–386, 2004; Published online in Wiley InterScience
(www.interscience.wiley.com). DOI 10.1002/mop.20146

bailao

Thanks for sharing!

xcm177

赚钱买资料，谢谢分享

junerjoe

谢谢分享！怎么那么多附件