Journal ArticleDOI
A Dual-Band Dipole Antenna With Integrated-Balun
Hualiang Zhang,Hao Xin +1 more
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TLDR
In this paper, a dual-band balun-integrated dipole antenna is designed and realized by the aid of a stepped-impedance transformer and tapped open-ended stubs.Abstract:
The design and realization of a dual-band balun-integrated dipole antenna is presented. A new type of dual-band balun is introduced as the feeding network, providing antiphase input signals for the dual-band dipole antenna. The dual-band balun is realized by the aid of a stepped-impedance transformer and tapped open-ended stubs. Combined with this balun, a uni-planar dual-band dipole antenna is designed. An experimental prototype working at 2.45/5.25 GHz are fabricated and measured. The measured performances of the antenna show good return loss and radiation patterns at the two working frequencies, proving the dual-band operation of the proposed dipole antenna.read more
Citations
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Journal ArticleDOI
Analysis and Design of a Compact Dual-Band Directional Antenna
TL;DR: In this article, the authors proposed a new type of compact dual-band directional antenna for 2.4/5 GHz wireless access point and RFID reader applications, which consists of a longer dipole for the lower band and a pair of shorter dipoles for the upper band.
Journal ArticleDOI
Small Antennas Based on CRLH Structures: Concept, Design, and Applications
TL;DR: In this paper, the authors apply composite right-left-hand CRLH-based RF design to print penta-band handset antennas directly on the printed circuit board (PCS), and balanced-antennas for Wi-Fi access points.
Journal ArticleDOI
A compact dual-band coupled-line balun with tapped open-ended stubs
TL;DR: In this paper, two additional open-ended stubs are added to the two balanced ports of the modifled Marchand balun to achieve the desired dual-band operation, and explicit design equations are derived using even-odd mode analysis.
Journal ArticleDOI
A Planar Dual-Band Coupled-Line Balun With Impedance Transformation and High Isolation
TL;DR: A novel planar dual-band coupled-line balun with impedance transformation and high isolation with good agreement between the simulated and measured results, which effectively confirm the proposed theoretical predictions.
Journal ArticleDOI
Design of Microwave Baluns With Flexible Structures
TL;DR: In this paper, two types of microwave baluns with generalized structures are presented, and the Even-odd mode method is applied to analyze the performance of these baluns, which match well with the theoretical analysis.
References
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Journal ArticleDOI
Dual-frequency planar inverted-F antenna
Zi Dong Liu,Peter Hall,D. Wake +2 more
TL;DR: In this paper, the authors proposed a planar dual-band inverted-F antenna for cellular handsets, which operates at the 0.9-GHz and 1.8-GHz bands.
Journal ArticleDOI
A small dual-frequency transformer in two sections
TL;DR: In this article, the feasibility of an electrically small transformer with two sections and capable of achieving ideal impedance matching at two arbitrary frequencies is demonstrated analytically, and the exact solution to the resulting transcendental transmission-line equations for two sections is obtained with no restrictions.
Journal ArticleDOI
Dual-band reconfigurable antenna with a very wide tunability range
Nader Behdad,Kamal Sarabandi +1 more
TL;DR: In this article, a new technique for designing dual-band reconfigurable slot antennas is presented, which is achieved by loading a slot antenna with two lumped variable capacitors (varactors) placed in proper locations along the slot.
Journal ArticleDOI
A varactor-tuned dual-band slot antenna
Nader Behdad,Kamal Sarabandi +1 more
TL;DR: In this article, a new technique for designing dual-band reconfigurable slot antennas is introduced based on loading a slot antenna with a lumped capacitor (or varactor) at a certain location along the slot.
Journal ArticleDOI
Design of broad-band and dual-band antennas comprised of series-fed printed-strip dipole pairs
F. Tefiku,Craig A. Grimes +1 more
TL;DR: The design of antennas consisting of two strip dipoles the arms of which are printed on opposite sides of an electrically thin dielectric substrate and connected through a parallel stripline is presented, allowing them to be readily manufactured as printed circuits.