International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395 -0056
Volume: 04 Issue: 04 | Apr -2017
p-ISSN: 2395-0072
www.irjet.net
Review on Compact Slot Antenna for Dual-band WLAN Applications Nilima. L. Asabe1, Vikas. U. Deshmukh2 1Student
Dept. Dept. Of E&TC, VPKBIET, Baramati, Maharashtra, India , Dept. Of E&TC, VPKBIET, Baramati, Maharashtra, India
2Professor
---------------------------------------------------------------------***--------------------------------------------------------------------Abstract— The design of a simple two patches slotted antenna with microstrip feed line is present. In that use in 2.4/5.2 GHz wireless local area network, WLAN applications. The first piece designed as a rectangular shape, and the other intended as an inverted L shape with a protruding stub. The proposed antenna supposed to prints on an FR4 substrate with a thickness of 0.8 mm and relative permittivity of 4.6. The resulting antenna found to have a compact size of 25.80x22 mm2. This dual-band resonant behavior makes the proposed antenna covering many communication services such as ISM, RFID, WLAN and WiFi applications.
2.LITERATURE SURVEY 2.1 J.-Y. Li The open-sleeve antenna is analyzed using the method of moment. The multi-band characteristic of the sleeve antenna investigated. The first and the third frequency bands come from the driven dipole; the 2nd frequency band due to a length of parasitic elements & the distance from the driven element and the parasitic elements. Useful outputs presented and discussed in this paper.
Keywords— Compact antennas, Dual band antennas, Slot Antennas, Wireless applications, WLAN.
2.2 Long Chen In this paper, a small asymmetric coplanar strip (ACS)-fed printed monopole antenna for tri-band WLAN applications presented. The proposed Antenna is the design of a simple monopole with the high resonant mode at 5.8GHz, open-ended slot embedded on the ground plane with the small resonant mode at 2.4GHz, and a meandering trip shorted to the ground with the middle resonant mode at 3.5GHz. The three resonance frequencies of the antenna controlled by adjusting the geometries and the sizes of the monopole, the slot, and the strip.The antenna occupies a minuscule size of 22×12mm2including the ground plane, nearly omnidirectional radiation characteristics and reasonable gain in the operating bands. The simple feeding structure, compactness, and uniplanar design make it easy to integrated within the portable device for wireless communication.
1. INTRODUCTION Many small antennas with broadband and multiband or ultra wideband performances including the dipole antenna, the monopole antenna, and planar antenna configurations reported [1-6]. These are printed antennas with moderate radiating characteristics and operates dual & multiple frequency bands. For the antenna fabrication and designed, the slot structures require providing a broadband and dual and systems including frequency ranges of ISM, WLAN, WiFi, and operating frequency of RFID. Recently several interesting structures of slot antennas with different geometric configurations for the bandwidth enhancement and the size reduction functions widely studied [7-12]. These antennas based on the groove design configurations and tunable antenna fabrications which developed to obtain full impedance BW and small size, but they complete creating structure. These slot Antenna design improved dual-band responses for wireless communications. The feed of the slot antennas using a centered or an offset microstrip feed line also reported.In this paper, a simple and compact dual slotted Antenna with a microstrip line feed proposed. The microstrip line dislocated from the center of the antenna. The proposed antenna exhibits dual-band characteristics with the lower resonant band of (2.66 – 3.01) G Hz and the upper band of (4.741 – 5.55) GHz.
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Impact Factor value: 5.181
2.3 V. Dark et.al A compact dual-band uniplanar antenna for operation in the 2.4=5.2=5.8 GHz WLAN=HIPERLAN2 communication band presented.Modifying one of the parallel strips of a slot line obtained dual-band antenna, thereby producing two different current paths. The antenna occupies a slight area of 14.5?16.6 mm2 including the ground plane on a substrate having dielectric constant 4.4 and h is 1.6 mm at 2.2 GHz. The antenna resonates with two bands from 2.2 to 2.52 GHz and from 5 to 10 GHz with good matching, excellent radiation characteristics, and moderate gain.
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