Triple-Band Slot Antenna With U-Shaped Open Stub Fed by Asymmetric Coplanar Strip for Wlan/Wimax Applications

Abstract

Abstract-A novel compact microstrip planar slot antenna with triple-band operations for WALN and WiMAX applications is proposed. The antenna, which occupies an overall dimension of 35 × 19 × 1.6 mm 3 , has a simple structure which consists of an asymmetric coplanar strip with a reverse G-shaped slot and a Ushaped open stub. The U-shaped open stub excites a resonant mode at 2.4 GHz. On the other hand the asymmetric coplanar strip could excite the resonant modes at 5.2 GHz. Meanwhile, the reverse Gshaped slot is aimed to excite resonant modes at 3.5 and 5.8 GHz. It has good omnidirectional radiation patterns in the azimuth plane and reaches 1.1 dBi at 2.4 GHz, 2.3 dBi at 3.5 GHz, 3.1 dBi at the band of 5 GHz. The designed antenna is simulated by HFSS software and a good agreement with experimental results is demonstrated.

Acs Feed Compact Multiband Antenna for Personal Wireless Communication Applications

“…The proposed antenna has the most compact dimensions and satisfactory stable gain and provides services in 2.4 GHz Bluetooth, 3.3/5.5 GHz WiMAX, 2.4/5.2/5.8 GHz WLAN frequency bands with acceptable gain of 4.5 dB. [12] 35 × 19 2.4/3.5/5.5 GHz Tri band [13] 37.5 × 24 2.4 GHz Dual band [14] 28 × 30 2.4/3.5/5.5 GHz Dual band [15] 21 × 19 2.4/5.2 GHz Dual band [16] 18 × 22 2.4/3.5/5.5 GHz Dual band [17] 17 × 17. Figure 1 shows the geometrical configuration of the proposed ACS feed triple-band antenna.…”

“…However, integration of these antennas with RF-MIC circuits with limited access to only service in WiMAX/WLAN frequency bands is a difficult task. Asymmetrical coplanar strip (ACS) feed multiband antennas provide easy integration solutions with RF-MIC have been reported in [11][12][13][14][15][16][17]. In general, an ACS feed antenna provides about 50% size reduction compared to the traditional CPW feed antenna as only one half the ground plane of the CPW structure is considered [16].…”

A Compact Acs-Fed Mirrored L-Shaped Monopole Antenna With SRR Loaded for Multiband Operation

“…Various ACS-fed antenna techniques have been proposed to achieve the multiband characteristics [8][9][10][11][12][13][14][15][16]. Multiband performances were achieved by etching various shaped slots in the radiating element or ground plane of the antenna design in [8][9][10][11], by adding various shaped strips with the radiating element [12][13][14][15] and using loaded capacitance termination technique for dual-band performance in [16].…”

“…In [21], SRR was etched on the radiating element of an ACS-fed antenna for achieving WLAN/Worldwide Interoperability for Microwave Access (WiMAX) applications, but it does not cover the International Telecommunication Union (ITU) band. In [8][9][10][11][12][13][14][15][16] and [20,21], ACS-fed antenna designs cover either WLAN or WLAN/WiMAX or WLAN/ITU band. To cover the WLAN/WiMAX/ITU applications simultaneously, an additional antenna is required which increases the size of the overall system with additional cost.…”

Design of a Compact Acs-Fed Dual Band Antenna for Bluetooth/Wlan and Wimax Applications

“…To decrease the overall size of the antenna, some designs have been reported in [19][20][21][22][23][24][25][26][27] by using the concept of asymmetric coplanar strip (ACS)-fed. In comparison to general coplanar waveguide (CPW)-fed antenna, an ACS-fed antenna structure will consume only 50% area by considering only half of the ground plane of CPW-fed structure.…”