New Multi-Band Microstrip Antenna Design for Wireless Communications

This letter investigates a new reconfigurable antenna technique based on the rotation of a slot. The surface currents are redistributed for each slot position. The antenna is simulated, fabricated, and tested. The return loss frequency tuning matches the simulated data. The antenna radiation pattern remains unchanged for different slot positions. Finally, the process for automatic rotation and control of the slot is investigated using graph models.Index Terms-Graph models, microstrip antennas, reconfigurable antennas.

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“…The antenna we propose here is the one in [7] and [8]. The basic structure of the antenna, shown in Fig.…”

Section: Antenna Structure and Propertiesmentioning

confidence: 99%

“…Then, graph modeling [6] of the antenna is used as a tool to understand its structure and investigate its optimality. The antenna is [7] and [8] with initial slot position. then simulated and fabricated, and measurements are provided to prove the validity of the new approach.…”

Section: Introductionmentioning

confidence: 99%

The Analysis of a Reconfigurable Antenna With a Rotating Feed Using Graph Models

Costantine

Al-Saffar

Christodoulou

et al. 2009

Antennas Wirel. Propag. Lett.

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“…The bandwidth increment would be achieved at some cost, but it can benefit the users by providing a higher data rate with shorter download time. The various feed structures that can be used for bandwidth enhancement, resonance-mode realization, and size reduction of a monopole antenna include the probe [11][12][13][14], the microstrip [15][16][17], and the coplanar waveguide (CPW) [18][19][20].…”

Section: Introductionmentioning

confidence: 99%

Miniaturization of a CPW-fed Dual-Band Antenna for GSM 1800/1900 and WLAN 5 GHz Applications

Borah¹,

Sheikh²,

Roy³

2017

Transactions on Electrical and Electronic Materials

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This paper presents a unique and miniaturized dual-band coplanar waveguide (CPW-fed) antenna for modern wireless communication. A new technique of using a modified ground structure (MGS) and frequency shifting strips (FSS) has been employed in the design to achieve dual-frequency operation. The proposed antenna generates two separate impedance bandwidths and covers the minimum required frequency bands of GSM 1800, GSM 1900, and WiFi/WLAN 5 GHz. The proposed antenna is relatively small (17 × 20 mm 2 ) and operates over frequency ranges 1.51~2.06 and 4.43~6.70 GHz. The designed antenna was simulated using Ansoft HFSS, a FEM based simulator, and antenna characteristics, such as reflection coefficient, gain, radiation efficiency, radiation pattern, impedance bandwidth, VSWR, surface current, and electric field distributions, are reported in this paper. The effect of the antenna's key structural parameters on its performance is also analyzed.

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“…In [6], some methods for designing compact, low-profile and broadband microstrip antennas were discussed. The various feed structures such as the probe, the microstrip, and the coplanar waveguide (CPW) were shown in [7][8][9][10][11][12][13][14][15][16].…”

Section: Introductionmentioning

confidence: 99%