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Proceedings ArticleDOI

Design of multi band antenna for mobile handset

11 Apr 2013-pp 949-952
TL;DR: In this paper, a multiband planar inverted F antenna for mobile handset applications is presented, where the idea of meandering technique is introduced into the conventional rectangular patch antenna for higher GSM frequency.
Abstract: This paper presents a multiband planar inverted F antenna for mobile handset applications. The novel idea of meandering technique is introduced into the conventional rectangular patch antenna for higher GSM frequency. The proposed antenna features rectangular patch antenna for GSM (880-960MHz) band and meandering slot for DCS (1710-1880MHz) and GSM (1710-1880MHz) bands. The impedance bandwidth of proposed antenna is 41MHz (0.882GHz-0.923GHz) at lower band and 110MHz (1.66GHz-1.77GHz) at upper operating band. The radiation pattern is nearly omnidirectional in both the planes. The parametric studies were carried out by High Frequency Structure simulator (HFSS).
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Book ChapterDOI
Y. Chéron1
01 Jan 1992
TL;DR: This chapter will focus on the design of the non-reversible series resonant converter.
Abstract: After the introduction and justification of several more or less well known and complicated conversion topologies based on series resonance, this chapter will focus on the design of the non-reversible series resonant converter. Following this, a brief description will be given concerning a collection of DC/DC and DC/AC converters developed under various industrial contracts by the Laboratoire d’Electrotechnique et d’Electronique Industrielle (L.E.E.L), Toulouse, France.

157 citations

Proceedings ArticleDOI
12 Dec 2019
TL;DR: In this article, a multiband planar antenna design for cellular and wireless communications is presented, which realizes an overall size of 40×40×1.6 mm3 and offers good radiation characteristics and gain for desired frequency bands.
Abstract: A multiband planar antenna design is presented for cellular and wireless communications. The presented antenna realizes an overall size of 40×40×1.6 mm3. It consists of a Gshaped and inverted L-shaped radiator. The G-shaped radiator is responsible to offer 1800 MHz, 2.45 GHz, and 3.5 GHz frequency bands, while the inverted L-shaped radiator can provide resonance at 900 MHz and 5 GHz frequency bands. Moreover, the proposed multiband antenna offers good radiation characteristics and gain for desired frequency bands. The proposed antenna design is also fabricated and measured to validate the simulation results.

Cites background from "Design of multi band antenna for mo..."

  • ...[3] proposed a meandered planar antenna design for dual-band GSM 900 MHz and 1800 MHz communication....

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References
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Book
06 Jan 2003
TL;DR: Very low profile monopoles for Internal Mobile Phone Antennas for WLAN applications are discussed in this paper, along with the integration of antennas for different operating Bands and a summary of acronyms.
Abstract: Preface. Introduction and Overview. PIFAs for Internal Mobile Phone Antennas. Very-Low-Profile Monopoles for Internal Mobile Phone Antennas. Base Station Antennas for Cellular Communication Systems. Antennas for WLAN Applications. Dielectric Resonator Antennas for Wireless Communications. Integration of Antennas for Different Operating Bands. Appendix: Summary of Acronyms. Index.

1,021 citations

Book
01 Feb 2001
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.
Abstract: From the Publisher: Understand the relationship between all the elements involved in the design of antennas for mobile communications with this book Written from a systems-oriented approach, it provides a detailed discussion of equipment mountings, proximity of obstacles, and propagation phenomena It also presents the innovations that the printed antenna has made possible — such as compact adaptive arrays to combat fading Supplemented with 184 equations and 461 illustrations

488 citations

Journal ArticleDOI
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.
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.

447 citations

Journal ArticleDOI
TL;DR: In this article, a capacitively loaded planar inverted-F antenna (PIFA) was proposed and studied, and it was found that the capacitive load reduced the resonance length of the PIFA from /spl lambda/4 to less than /spl ε/S.
Abstract: A capacitively loaded planar inverted-F antenna (PIFA) is proposed and studied. It is found that the capacitive load reduces the resonance length of the PIFA from /spl lambda//4 to less than /spl lambda//S. A design with a bandwidth of 178 MHz centered at 1.8 GHz is provided to demonstrate that compact antennas for mobile telephone handsets can be constructed using this approach. The finite-difference time-domain (FDTD) method is used in the study and experimental verification is also provided.

376 citations

Book
01 Jan 2006
TL;DR: In this article, the authors present an overview of the most important features of a planar antenna and its application in computer applications. But, they do not discuss how to improve the performance of these antennas.
Abstract: Foreword. Preface. Acknowledgements. 1 Planar Radiators. 1.1 Introduction. 1.2 Bandwidth Definitions. 1.2.1 Impedance Bandwidth. 1.2.2 Pattern Bandwidth. 1.2.3 Polarization or Axial-ratio Bandwidth. 1.2.4 Summary. 1.3 Planar Antennas. 1.3.1 Suspended Plate Antennas. 1.3.2 Bent Plate Antennas. 1.4 Overview of this Book. References. 2 Broadband Microstrip Patch Antennas. 2.1 Introduction. 2.2 Important Features of Microstrip Patch Antennas. 2.2.1 Patch Shapes. 2.2.2 Substrates. 2.2.3 Feeding Structures. 2.2.4 Example: Rectangular Microstrip Patch Antennas. 2.3 Broadband Techniques. 2.3.1 Lowering the Q. 2.3.2 Using an Impedance Matching Network. 2.3.3 Case Study: Microstrip Patch Antenna with Impedance Matching Stub. 2.3.4 Introducing Multiple Resonances. 2.3.5 Case Study: Microstrip Patch Antenna with Stacked Elements. References. 3 Broadband Suspended Plate Antennas. 3.1 Introduction. 3.2 Techniques to Broaden Impedance Bandwidth. 3.2.1 Capacitive Load. 3.2.2 Slotted Plates. 3.2.3 Case Study: SPA with an -shaped Slot. 3.2.4 Electromagnetic Coupling. 3.2.5 Nonplanar Plates. 3.2.6 Vertical Feed Sheet. 3.3 Techniques to Enhance Radiation Performance. 3.3.1 Radiation Characteristics of SPAs. 3.3.2 SPA with Dual Feed Probes. 3.3.3 Case Study: Center-concaved SPA with Dual Feed Probes. 3.3.4 SPA with Half-wavelength Probe-fed Strip. 3.3.5 SPA with Probe-fed Center Slot. 3.3.6 Case Study: Center-fed SPA with Double L-shaped Probes. 3.3.7 SPA with Slots and Shorting Strips. 3.4 Arrays with Suspended Plate Elements. 3.4.1 Mutual Coupling between Two Suspended Plate Elements. 3.4.2 Reduced-size Array above Double-tiered Ground Plane. References. 4 Planar Inverted-L/F Antennas. 4.1 Introduction. 4.2 The Inverted-L/F Antenna. 4.3 Broadband Planar Inverted-F/L Antenna. 4.3.1 Planar Inverted-F Antenna. 4.3.2 Planar Inverted-L Antenna. 4.4 Case Studies. 4.4.1 Handset Antennas. 4.4.2 Laptop Computer Antennas. References. 5 Planar Monopole Antennas and Ultra-wideband Applications. 5.1 Introduction. 5.2 Planar Monopole Antenna. 5.2.1 Planar Bi-conical Structure. 5.2.2 Planar Monopoles. 5.2.3 Roll Monopoles. 5.2.4 EMC Feeding Methods. 5.3 Planar Antennas for UWB Applications. 5.3.1 Ultra-wideband Technology. 5.3.2 Considerations for UWB Antennas and Source Pulses. 5.3.3 Planar UWB Antenna and Assessment. 5.4 Case Studies. 5.4.1 Planar UWB Antenna Printed on a PCB. 5.4.2 Planar UWB Antenna Embedded into a Laptop Computer. 5.4.3 Planar Directional UWB Antenna. References. Index

230 citations