Broadb and High-Gain E-Shaped Microstrip Antennas for High-Speed Wireless Networks

Abstract

New electromagnetically coupling fed low profile broadband high gain E-shaped microstrip antennas (MSA) were proposed for high speed wireless networks in IEEE 802.11 a and j standards. The proposed antenna uses an E-shaped microstrip patch covered by a radome and fed by an electromagnetically coupled strip. To validate this concept, a single antenna element and a sub-array were designed, built and measured. The measured results indicate that the element and the sub-array cover the band from 4.8 to 6.0 GHz (return loss < −10 dB) and produce a gain of 8 dBi and 11 dBi, respectively. The developed prototypes may find their applications in wireless communication networks as mobile or base antennas.

Design Analysis of High Gain Wideband L-Probe Fed Microstrip Patch Antenna

“…As shown in the figure, the maximum achievable peak gain is 9.5 dBi at the frequency of 2.06 GHz and the gain is better compare to design reported in [5][6][7][8][9][10][11][12][13][14][15]. In addition, the design in [10] is based on foam substrate that is more complex than our design which is based on air substrate.…”

“…A better gain of 9.5 dBi is achieved compared to the design reported in [4][5][6][7][8][9][10][11][12][13][14][15]. Figure 1 depicts the geometry of the LEE-H patch antenna.…”

“…The patch substrates of these antennas are non inverted. Utilizing the shorting pins or shorting walls on the unequal arms of a U-shaped patch, U-slot patch, L-strip patch or L-probe feed patch, H-shaped stacked patch antennas, wideband and dual-band impedance bandwidth have been achieved with electrically small size in [10][11][12][13][14][15]. However the achievable gains of these antennas are below 8.5 dBi.…”

Practicability Analysis and Application of PBG Structures on Cylindrical Conformal Microstrip Antenna and Array

“…Generally the thickness of substrate is less than one-tenth of the wavelength λ 0 . Meanwhile, the dielectric constant ε r of the substrate plays the same role in increasing edge field and its radiation power [21,22]. The configuration parameters of the patch antenna as is shown in Fig.…”

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“…Denidni and N. Hassaine [12] reported that antenna operates at the frequency band from 4.8GHz to 6.0GHz. M.R.…”