Journal ArticleDOI
Dual-frequency planar inverted-F antenna
Zi Dong Liu,Peter Hall,D. Wake +2 more
TLDR
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.Abstract:
Cellular telephone handsets are now being designed to have dual-mode capabilities. In particular, there is a requirement for internal antennas for GSM and DCS1800 systems. This paper describes a novel planar dual-band inverted-F antenna for cellular handsets, which operates at the 0.9-GHz and 1.8-GHz bands. The dual-band antenna has almost the same size as a conventional inverted-F antenna operating at 0.9 GHz and has an isolation between bands of better than 17 dB. The bandwidths of the antenna are close to those required for the above systems. Good dual-band action is also obtained for other frequency ratios in the range of 1.3-2.4. Studies also show that the dual-band antenna can operate with one or two feeds. A finite-difference time-domain analysis has been shown to give calculated results close to those measured.read more
Citations
More filters
Book
Compact and Broadband Microstrip Antennas
TL;DR: In this paper, the authors present an overview of the most recent advances in regular-size Dual-Frequency Antennas and their application in a wide range of applications, including: 1.1 Introduction.
Journal ArticleDOI
The Theory of Characteristic Modes Revisited: A Contribution to the Design of Antennas for Modern Applications
TL;DR: In this paper, the authors summarize the work that has been developed by the authors for the last several years, in order to demonstrate that the Theory of Characteristic Modes can be used to perform a systematic design of different types of antennas.
Journal ArticleDOI
Study and Reduction of the Mutual Coupling Between Two Mobile Phone PIFAs Operating in the DCS1800 and UMTS Bands
TL;DR: Several solutions are presented to reduce the mutual coupling between two planar inverted-F antennas working in close radiocommunication standards and positioned on a finite-sized ground plane modeling the printed circuit board (PCB) of a typical mobile phone.
Journal ArticleDOI
Concurrent multiband low-noise amplifiers-theory, design, and applications
Hossein Hashemi,Ali Hajimiri +1 more
TL;DR: A systematic way to design concurrent multiband integrated LNAs in general is developed and experimental results of a dual-band LNA implemented in a 0.35-/spl mu/m CMOS technology are presented.
Journal ArticleDOI
Resonator-based analysis of the combination of mobile handset antenna and chassis
TL;DR: In this paper, the performance of the mobile phone handset antenna-chassis combination is analyzed based on an approximate decomposition of the waves on the structure into two resonant wavemodes: the antenna-element wavemode and the chassis wavemode.
References
More filters
Journal ArticleDOI
Absorbing Boundary Conditions for the Finite-Difference Approximation of the Time-Domain Electromagnetic-Field Equations
TL;DR: In this paper, highly absorbing boundary conditions for two-dimensional time-domain electromagnetic field equations are presented for both two-and three-dimensional configurations and numerical results are given that clearly exhibit the accuracy and limits of applicability of these boundary conditions.
Book
Mobile Antenna Systems Handbook
K. Fujimoto,J.R. James +1 more
TL;DR: In this paper, the relationship between all the elements involved in the design of antennas for mobile communications is discussed from a systems-oriented approach, providing a detailed discussion of equipment mountings, proximity of obstacles, and propagation phenomena.
Journal ArticleDOI
FD-TD modeling of digital signal propagation in 3-D circuits with passive and active loads
TL;DR: In this paper, the authors discuss full-wave modeling of electronic circuits in three dimensions using the finite-difference time-domain (FD-TD) solution of Maxwell's equations.
Journal ArticleDOI
Overview of wireless personal communications
TL;DR: This article presents an overview of the current state of wireless communications, including relevant ongoing activities in technology development, standards, and spectrum allocation, and ongoing and planned future developments are summarized.
Journal ArticleDOI
Performance analysis of antennas for hand-held transceivers using FDTD
TL;DR: The paper presents the analysis of small antennas mounted on hand-held transceivers using the finite-difference time-domain (FDTD) method, which is used to predict the gain patterns and broadband input impedance behavior of monopole, planar inverted F, and loop antenna elements mounted on the handset.
Related Papers (5)
A compact PIFA suitable for dual-frequency 900/1800-MHz operation
Corbett Rowell,Ross D. Murch +1 more
A capacitively loaded PIFA for compact mobile telephone handsets
Corbett Rowell,Ross D. Murch +1 more
Low-profile enhanced-bandwidth PIFA antennas for wireless communications packaging
K.L. Virga,Yahya Rahmat-Samii +1 more