H- Shaped Stacked Patch Antenna for Dual Band Operation

Ansari, J. A.; Singh, Prabhakar; Dubey, Satya Kesh; Khan, Rahmat Ullah; Vishvakarma, Babau R.

doi:10.2528/pierb08031203

Cited by 95 publications

(53 citation statements)

References 15 publications

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“…On the other hand, microstrip patch antennas (MPAs) [5] are an appropriate candidate due to their low cost and profile, compactness, and conformity to planar and nonplanar surfaces. Various shapes of the MPA element were extensively studied, such as rectangular [6][7][8][9][10], U-slot [11,12], H-shaped [13], fractal [14], annual ring [15], polygonal [16], star-shaped [17] patch antennas and so on, and have a lot of applications, for example in the RF front-end [18]. But their impedance bandwidths are often a few percents.…”

Section: Introductionmentioning

confidence: 99%

Novel Unidirectional Slot Antenna With a Vertical Wall

Xue

et al. 2008

PIER

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Abstract-A novel slot antenna that consists of an H-shaped slot encompassed by a rectangular metallic wall and a pair of C-shaped slots outside the wall is proposed. It features a unidirectional pattern, small electrical dimensions and medium gain. The H-shaped slot radiates as an inductively loaded magnetic dipole while the induced electric currents on the vertical wall radiates as electric dipoles. The front-to-back ratio (FBR) of the antenna can be controlled by proper constructive and destructive interferences of radiating fields of the magnetic and electric dipoles. The size of the ground plane can be reduced by the use of the C-shaped slots that confine the currents to the proximity of the metallic wall. Two prototype antennas operating at 2.4 GHz were designed. By adjusting the structure parameters, the front-to-back ratio of the antenna can be conveniently altered. The first prototype has an impedance bandwidth (BW) of 3.8% for SWR ≤ 2, a 4.6 dBi gain, a 10-dB FBR and a ground size of 0.84λ 0 × 0.64λ 0 where λ 0 is the free-space wavelength at the center frequency. The corresponding figures of the second prototype are 1.83%, 4.1 dBi, over 20 dB and 0.64λ 0 × 0.64λ 0 . Both antennas have a height of 0.128λ 0 .

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Section: Introductionmentioning

confidence: 99%

Novel Unidirectional Slot Antenna With a Vertical Wall

Xue

et al. 2008

PIER

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“…The loop structure and two-layered meander strips are used to design small size and broadband antenna for mobile terminals [23]. Important related work also reported by various authors [24][25][26][27][28] where broadband miniaturized printed antennas are developed. The input impedance of a proximity coupled microstrip antenna is a sensitive function of length and width of the microstrip feed line.…”

Section: Introductionmentioning

confidence: 99%

“…Single layer microstrip antennas have very narrow bandwidth, but using multi-layered configurations like proximity coupled microstrip antennas or aperture coupled microstrip antennas, higher bandwidth can be achieved [12][13][14][15][16][17][18]. Design and development of compact printed antennas for wireless communications are also reported [19][20][21][22][23][24][25][26][27][28]. A thin wideband microstrip patch using two parallel slots is designed for WLAN [19].…”

Section: Introductionmentioning

confidence: 99%

Design of a Circularly Polarized Microstrip Antenna for Wlan

Roy¹,

Thomas²

2008

PIER M

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Abstract-The design and performance of a circularly polarized microstrip patch antenna, for the application in Wireless Local Area Network (WLAN), are reported here. The antenna is a proximity coupled microstrip patch antenna where the radiating patch is loaded by a V-slot. This miniaturized microstrip antenna has wide bandwidth in the frequency band of WLAN and exhibits circularly polarized far field with very good axial ratio bandwidth. The simulated results using IE3D software are verified by measurement.

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“…However, despite of these several advantages, the microstrip anten-nas suffers from some disadvantages of narrow bandwidth and low efficiency. Various researches have been made to increase the bandwidth of Microstrip antennas, which includes increase of the substrate thickness, the use of a low dielectric constant, slotted patch antennas, introducing the parasitic elements either in coplanar or stacked configuration, the use of various impedance matching and feeding techniques [3][4][5][6][7][8]. The dielectric constant of the substrate is closely related to the size and the bandwidth of the microstrip antenna.…”

Section: Introductionmentioning

confidence: 99%

Bandwidth optimization of compact microstrip antenna for PCS/DCS/bluetooth application

et al. 2014

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A novel compact broadband microstrip patch antenna is presented for various wireless applications. The proposed antenna has been fabricated and the impedance bandwidth and radiation pattern are measured. The simulated and measured antenna characteristics along with radiation pattern and gain are presented. It is stated that the proposed designed antenna can completely cover the required band widths of Digital communication system (DCS 1.71-1.88 GHz), Personal communication system (PCS 1.85-1.88 GHz) and IEEE 802.11b/g (2.4-2.485 GHz) with satisfactory radiation characteristics. The Experimental result shows that the proposed antenna presents a bandwidth 60.25% covering the range of 1.431-2.665 GHz with the maximum radiation efficiency 90%.

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H- Shaped Stacked Patch Antenna for Dual Band Operation

Cited by 95 publications

References 15 publications

Novel Unidirectional Slot Antenna With a Vertical Wall

Novel Unidirectional Slot Antenna With a Vertical Wall

Design of a Circularly Polarized Microstrip Antenna for Wlan

Bandwidth optimization of compact microstrip antenna for PCS/DCS/bluetooth application

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