Design a PIFA with fold‐type ground plane for dual frequency mobile phone

Journal of Electromagnetic Waves and Applications

2009

The objective of this paper is to design a compact multiband monopole antenna for a PDA phone. Using a simple inverted-U-shaped driven element, we observe that the proposed antenna resonates in the high-frequency band (1700-2568 MHz) for DCS, PCS, UMTS, and WLAN applications. The low-frequency bandwidth (881-1280 MHz), which covers the GSM band, is accomplished by a novel dual low-frequency mode method. The overall dimensions of this proposed antenna are 100 mm (length) × 60 mm (width) × 0.8 mm (thickness); it can easily fit into PDA phones and WLAN products. Herein, the design procedures and the simulated and measured values of return losses, radiation patterns, gain, and efficiency are presented and discussed.

Section: Introductionmentioning

confidence: 99%

Novel Printed Monopole Antenna for PDA Phone and WLAN Applications

Journal of Electromagnetic Waves and Applications

2009

“…The straightforward and inexpensive photoimageable thickfilm technology provides a much finer line/gap resolution than the traditional printed circuit board (PCB)/thick-film process and has been demonstrated as the most viable option for cost-effective millimeter-wave SiP applications [4][5][6][7]. The process has been demonstrated as a suitable means of realizing low loss thin-film microstrip (TFMS) lines and interconnections up to 110 GHz, substrate integrated waveguide components up to 180 GHz and a highly compact complete 60-GHz MCM receiver integrating MMICs with substrate integrated waveguide components [4,5].…”

Section: Introductionmentioning

confidence: 99%

“…However, the PIFA antenna in Refs. 6 and7 needed an extra height of 10 or 7 mm is sometime a problem to be placed in the compact devices. Loop antennas [8, 9] use half wavelength resonant mode to produce the desired multifrequency bands.…”

Section: Introductionmentioning

confidence: 99%

A compact meandered antenna with multifrequency bands for mobile phone applications

Liou

Micro & Optical Tech Letters

2011

In this article, a meandered monopole antenna is designed to cover the global system for mobile communication (GSM900), digital communication system, personal communication system, universal mobile telecommunication system (UMTS) and WLAN 802.11b applications. The size of antenna is 12 mm × 42 mm, and that of ground plane is 60 mm × 42 mm. A 50‐Ω microstrip line with length of 25 mm is used to feed the monopole antenna. The proposed antenna is designed a meandered current path to resonate three frequency bands centered at 900, 1800, and 2400 MHz. By adjusting the width of the meandered strip, good impedance bandwidths for the five application bands can be achieved. The detailed configuration of the proposed antenna and experimental results are presented and discussed. © 2011 Wiley Periodicals, Inc. Microwave Opt Technol Lett 53:2216–2221, 2011; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26298

“…Therefore, the antenna for today's mobile phone applications needs to cover the 4G operation bands, which include LTE 700 (698–787 MHz), GSM 850 (824–894 MHz), GSM 900 (880–960 MHz), DCS 1800 (1710–1880 MHz), PCS 1900 (1850–1990 MHz) and UMTS (1920–2170 MHz), LTE 2300 (2305–2400 MHz), and LTE 2500 (2500–2690 MHz) [1, 2]. In the prior of arts, many types of antennas are successfully designed for mobile phone systems such as PIFA antennas [3, 4] and monopole antennas [5, 6]. To reduce the antennas' dimension, these antennas use quarter‐wavelength resonant mode to obtain the required operation bands.…”

Section: Introductionmentioning

confidence: 99%

A printed coupled‐fed loop antenna with two chip inductors for the 4G mobile applications

Micro & Optical Tech Letters

Liu

2012

This article proposes a meandered printed loop antenna for the fourth generation (4G) mobile system applications. Using a coupling strip connected with a 50 Ω microstrip fed‐line on front side, the loop antenna on back side is excited and a half wavelength (0.5 λ) resonant mode and its higher modes are successfully resonated. A plane copper strip connected at top of the loop antenna is used to increase the antenna's path and to decrease the lower operation band to cover LTE 700 band. Two 15 nH ceramic chip inductors, which are embedded in the loop antenna, are used to decrease the antenna's 1 and 1.5 λ resonant modes. The 0.5, 1, and 1.5 λ resonant modes get together to form a broad lower operation band (693–1031 MHz) for LTE 700 and GSM 850/900 applications. Beside, the antenna's higher resonant modes are also excited to form a broad higher operation band (1668–2781 MHz) for DCS, PCS, UMTS, LTE 2300, LTE 2500, and WLAN applications. The proposed antenna also has an advantage of small size, which is 114 × 50 mm2 including a loop antenna of 14 × 50 mm2 and a ground plane of 100 × 50 mm2. With the advantages of board band, compact size, low cost, and good performance, the proposed antenna appears to be an optimal candidate for the 4G mobile applications. © 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 54:2157–2163, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26997