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In this paper, a slotted rook shaped novel wide band microstrip patch antenna suitable to be employed for C-Band satellite downlink, Radio Altimeter, IMT, WiMAX applications has been proposed. The proposed antenna is resonant at 4.3 GHz with an impedance bandwidth of 1.419 GHz (3.181 GHz to 4.6 GHz) and a return loss of −53.94dB. The Teflon is used as substrate for designing the proposed antenna having...
A compact, tuning-fork, microstrip-fed monopole antenna and a classical triangular patch antenna operating at 5.5 GHz for WiMAX and 5.2/5.8 GHz for WLAN and ISM are presented. The antenna fork features an arm with a slit, which improves the gain by 12% compared with fork antenna without slit. The antenna offers 1 GHz, 2:1 VSWR bandwidth. The proposed antenna has a compact size of 21 mm × 13 mm, resulting...
A small dual band antenna is presented to be inserted in a wireless communication device. The proposed antenna consists of L-shaped and mirror L-shaped stubs that are designed for wireless local area network (WLAN) bands at (5.15–5.8GHz) and worldwide interoperability of microwave access (WiMAX) bands at (3.3–3.7GHz) using a defected ground structure. The patch of the antenna is printed on an FR-4...
In the paper we presents a dual-open-slot antenna, with a overall size of 50 × 13 × 3.5 mm3. The antenna consists of a long-open-slot and a short-open-slot. The tail of the long-slot is bent for compact size. The dual-slot antenna is feed by an L-shaped microstrip line. The long-slot used in the 2.4GHz mode and short slot excitation in 5.2 GHz mode. The open slots are excited through the L-shaped...
This paper presents a compact dual wideband asymmetric cross patch antenna fed by cross strip line for WLAN and WiMAX applications over the frequency band of (WLAN: 2.4–2.484 GHz, 5.15–5.35 GHz and 5.725–5.825 GHz) and (WiMAX: 2.5–2.69, 3.3–3.7, and 5.25–5.85 GHz). The antenna designed on an FR4 substrate with a thickness of 1.6 mm and the relative permittivity of 4.4, is fed by a 50Ω transmission...
A simple radiating structure for achieving omni-directional radiation pattern from a monopole antenna fed by a CPW feed is presented. The proposed antenna has a 2:1 VSWR bandwidth of 76% from 2.7GHz to 5.7GHz. Hence it is suitable for WLAN 5.2(5.15-5.35GHz) band, WiMAX 2.5/3.5(2.5-2.69GHz, 3.4-3.69GHz) bands, HiperLAN2 (5.47-5.725 GHz) and HiSWaNa (5.15-5.25GHz) wireless application bands. The simulated...
A very small multiband chip antenna for portable mobile devices is presented. This work examines a new ceramic material suitable for the internal antenna design which gives a shorter guided wavelength and multiple resonances to achieve antenna size reduction, sufficient space utilization, and bandwidth increase. The occupied volume of the antenna radiator is only 10×3×4 mm3, approximately equal to...
A design of modified H-shaped patch antenna with slots and modified ground plane is presented in this paper. H-patch configuration with modified ground plane is proposed to increase the directivity, bandwidth and reflection coefficient of antenna. The H-shape patch antenna is feed by transmission line. By giving extra slots on top of the patch, it can increase the reflection coefficient of antenna...
An asymmetric microstrip-fed tri-band monopole antenna with a C-shaped ground stub loaded is investigated. Two strips and a crooked stub connected to the ground through a via-hole are use to obtain the frequency ranges of 2.4–2.52 GHz, 3.4–3.65 GHz, and 5.16–6.2 GHz, which is met the specifications of WLAN 2.4/5.2/5.8 GHz and WiMAX 3.5/5.5 GHz. Besides, the proposed antenna not only exhibits almost...
An asymmetric microstrip-fed tri-band monopole antenna with a C-shaped ground stub loaded is investigated. Two strips and a crooked stub connected to the ground through a via-hole are use to obtain the frequency ranges of 2.4–2.52 GHz, 3.4–3.65 GHz, and 5.16–6.2 GHz, which is met the specifications of WLAN 2.4/5.2/5.8 GHz and WiMAX 3.5/5.5 GHz. Besides, the proposed antenna not only exhibits almost...
A dual-band planar printed monopole antenna for wireless local area network (WLAN) and worldwide interoperability for microwave access (WiMAX) applications are presented. The proposed antenna is designed on inexpensive FR4 substrate having dielectric constant 4.4 and thickness 1.6 mm, which covers WLAN 2.4 GHz (2.4 GHzȓ2.5 GHz), WiMAX 2.5 GHz (2.5 GHzȓ2.69 GHz), WiMAX 3.5 GHz (3.3GHzȓ3.6GHz), HIPERLAN1...
In this paper, a three-layered slot antenna with compact size and high gain is proposed at 5.4 GHz for Wi-MAX (5.2∼5.8 GHz) applications. Simulated gain of 12dBi and measured gain of 10.48dBi are achieved and the impedance bandwidth is 22.59%. The efficiency is measured of 97.23%. Measured and simulated results are in good agreement. The overall size of the antenna is 100×100 ×21.5 mm3.
A printed slot antenna for WLAN/WiMAX and UWB applications is proposed. The rounded corners of slot and spade-shaped exciting patch are applied to the pentagonal slot. The proposed antenna capably responds to extremely wide impedance bandwidth. For impedance matching enhancement, a tapered CPW transmission line is introduced. The impedance bandwidth over 138 % is obtained. The radiation patterns likely...
The Worldwide Interoperability for Microwave Access (WiMAX) is a set of technical standards based on IEEE 802.16 standard, WiMAX is an alternative solution for the deployment of broadband networks in the territories, whether or not covered by other technologies such as ADSL or cable. It provides flexibility in network deployment options and service and supports point-to-multipoint (PMP) and Mesh mode...
A frequency reconfigurable planar inverted-F antenna (PIFA) using a PIN-diode is presented for mobile-WiMAX applications. The antenna in this study not only alters the frequency bands of mobile-WiMAX but also has a small profile using electro-magnetic coupling in a high dielectric constant substrate. The PIFA consists of a main radiator, an additional parasitic radiator, a coupled radiator, two PIN-diodes,...
The strip-fed wideband notched rectangular dielectric resonator antenna is investigated in this paper. By simultaneously exciting the TE111y and TE113y modes of the DRA, a wide impedance bandwidth of 56% can be obtained, which entirely covers the WLAN (2.4-2.48 GHz) and WiMAX (3.4-3.7 GHz) bands. The reflection coefficient, radiation patterns, antenna gain and efficiency of the antenna were studied...
A simple and compact asymmetric coplanar strip (ACS)-fed microstrip antenna for triple-band is presented for wireless technologies such as WLAN and WiMAX. The proposed antenna consists of rectangular strip ring with a double meandering along with a combination of horizontal and vertical parasitic strips are used. Prototypes of the proposed antenna have been optimally designed, constructed and tested...
In this paper, we proposed a WLAN/WiMax printed antenna executed by using microstrip feeding and matching. This antenna is constructed with a double-sided FR4 substrate with the radiator mounted on one side which contains one circle and one square element, the microstrip line fed on the other side to bring the wideband impedance match on the microstrip line and perform the dual and wide band effect...
A planar C-shaped monopole antenna with multi-band operation for WiMAX system has been proposed and investigated. It provides relatively wider impedance bandwidth of 201/330/1195 MHz for 2.6/3.5/5.5 GHz band, respectively. The proposed planar monopole antenna also provides the omni-directional radiation patterns with maximum peak antenna gain and radiation efficiency of 3.3/2.6/6.4 dBi and 82/66/90...
A dual-feed circular patch coupled to the microstrip feeding line through an annular slot has been used to realize a circularly polarized 2x2 array. Simulation results are compared with those for a 2x2 array composed of 4 dual-feed square patches coupled to the microstrip feeding line through a square ring slot. Simulations results for the two arrays both designed to operate in the WiMAX™ frequency...
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