scispace - formally typeset
Search or ask a question
Proceedings ArticleDOI

Multiband Planar Antenna for Cellular and Wireless Applications

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.

Content maybe subject to copyright    Report

References
More filters
Proceedings ArticleDOI
27 Jun 2011
TL;DR: In this article, a reconfigurable rectangular microstrip slot patch antenna of operating frequencies in the range of (2-6) GHz is proposed for wireless local area network (WLAN) applications.
Abstract: A compact of a reconfigurable rectangular microstrip slot patch antenna of operating frequencies in the range of (2–6) GHz is proposed for Wireless Local Area Network (WLAN) applications. It has one port excited with microstrip line feed mechanism. The proposed antenna consists of a single layer patch antenna with two parallel slots designed that can be controlled via two PIN diode switches. Two parallel slots are incorporated to perturb the surface current path, introducing local inductive effect that is responsible for the excitation of the second resonant mode. By adjusting the status of the switches state either on or off mode in simultaneously, the resonance frequencies can be varied, thus achieving frequency reconfigurable. A comprehensive parametric study has been carried out to understand the effects of various dimensional parameters (slots and PIN diode switches) and to optimize the performance of the antenna. This antenna is capable to achieve return loss less than −10dB and VSWR≤2 in multiband frequencies at 2.4GHz and 5.8GHz when both switches are ON mode while only in 2.4GHz can be achieved when both switches are OFF mode. The designed antennas have been also fabricate onto FR-4 and measured to compare the real results of return loss (S 11 ) and voltage standing wave ratio (VSWR) with those obtained from the simulations. The proposed antenna is very promising for various modern communication applications.

34 citations


"Multiband Planar Antenna for Cellul..." refers background in this paper

  • ...One of the reconfigurable antenna configurations was also presented in the literature for tri-band frequency response [4]....

    [...]

01 Jun 2011
TL;DR: In this paper, a simple and compact microstrip-fed printed monopole antenna (PMA) for applications in wireless local area network (WLAN) and radio frequency identification (RFID) is presented.
Abstract: Design of a simple and compact microstrip-fed printed monopole antenna (PMA) for applications in wireless local area network (WLAN) and radio frequency identification (RFID) is presented. The dual-band operation is achieved from the 9-shaped folded antenna which is printed on a non-conductor backed dielectric. Measured percentage impedance bandwidth of the PMA at the center frequencies of 2.43 GHz and 5.24 GHz are 33.13 (2.14 GHz to 2.99 GHz) and 36.43 (4.40 GHz to 6.36 GHz) respectively. Consistent omnidirectional radiation patterns have been observed in both the frequency bands from the experimental results. The proposed antenna is simple in design and compact in size. It exhibits broadband impedance matching, consistent omnidirectional radiation patterns and appropriate gain characteristics (>2.5 dBi) in the RFID and WLAN frequency regions.

27 citations

Journal ArticleDOI
TL;DR: In this article, a planar T-shaped monopole antenna with multi-band operation for WLAN/WiMAX system is proposed, and the measured peak gain and radiation e-ciencies are about 3.2/3.4dBi and 72/98/96% for the 2.45/ 3.5/5.5GHz band, respectively.
Abstract: A novel compact design of planar T-shaped monopole antenna with multi-band operation for WLAN/WiMAX system is proposed. By insetting a pair of mirrored L-shaped monopole strips, multi resonant modes close to 2.45/3.5/5.5GHz band are excited to meet the speciflcations of WLAN/WiMAX system. And, the obtained impedance bandwidth across the operating bands can reach about 160/1100/2690MHz for the 2.45/3.5/5.5GHz bands, respectively. Only with the antenna size of 30£42£0:8mm 3 , the proposed monopole antenna has the compact operation with more than 20% antenna size reduction. The measured peak gains and radiation e-ciencies are about 3.2/3.5/5.4dBi and 72/98/96% for the 2.45/3.5/5.5GHz band, respectively, with nearly omni-directional pattern in the XY -plane.

24 citations

Journal ArticleDOI
TL;DR: In this paper, the authors proposed a slot antenna intended to work at four bandwidth frequency groups, which meet the specifications of (DO,1xRTT-3G), (WiMAX-IEEE 802.11b,g, & n) communications.
Abstract: To design a slot antenna intended to work at four bandwidth frequency groups, which meet the specifications of (DO,1xRTT-3G), (WiMAX-IEEE802.11e), (WiMAX-IEEE802.16m) and (Wi-Fi.802.11b,g, & n) communications. The slot in the proposed antenna taken the form of the character (Q) that was feed by step impedance micro strip line design open mouth ended. The surface current distribution at resonant frequencies and the effect of varying the dimensions of the parameters on impedance bandwidth had been studied carefully in this research to enhance the performance of resonant frequency.

23 citations


"Multiband Planar Antenna for Cellul..." refers background in this paper

  • ...In [14], a single layer slot antenna was presented for multiband applications....

    [...]

Journal ArticleDOI
TL;DR: In this paper, a compact paw-shaped multiband monopole antenna for wireless local area network (WLAN) and worldwide interoperability for microwave access (WiMAX) applications is presented.
Abstract: A compact paw-shaped multiband monopole antenna for Wireless local area network (WLAN) and worldwide interoperability for microwave access (WiMAX) applications is presented. The proposed antenna is composed of a paw-shaped monopole element and a rectangular ground plane with simple conflguration. This antenna can easily be fed by using a 50ohm probe feed with SMA connector. By adjusting a few parameters of the three arms, the resonant frequencies can be easily tuned. The proposed antenna was analyzed and optimized to cover three bandwidths from 2.32 to 2.84, 3.39 to 4.34 and 5.11 to 5.91GHz that for WLAN and WiMAX applications respectively, with the return loss of better than 10dB. The performances of the antenna are demonstrated along with measured and simulated results. Moreover, simulated and experimental results with difierent parameters of the antenna are given.

22 citations