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A single or dual band selectable metamaterial absorber constituted by a toppled “H” like shaped structure with four diamond shaped patch is presented in this paper. Attached to the diamond shaped patches are copper switches (S1, S2, S3, & S4) which are used in switching operational frequency/operational modes The proposed structured demonstrated single or dual band operation mode reconfiguration...
The use of flexible materials such as textile, vinyl and flexible polymer as a substrate for designing wearable antenna are becoming very popular. As the antennas are easily exposed to mechanical deformation while being worn by users, the necessity to measure and analyze the effect of the antenna deformation towards the antenna performance and electromagnetic (EM) energy absorbed by the body are increasing...
A dual-band textile Artificial Magnetic Conductor (AMC) sheet-like waveguide with two single-band textile diamond dipole antennas made of fleece fabric have been designed and presented in the report. The AMC structure is designed to have zero reflection phase at 2.45 GHz and 5.8 GHz with the aim to improve the transmission between antennas. The performances of two antennas with textile AMC sheet have...
This paper presents the design of leaf shaped dual band flexible textile antenna. The textile antenna designed at 1.8GHz suitable for Long Term Evolution (LTE) and 2.8GHz WiMAX application. To enhance the flexibility of the proposed antenna and for the comfort of the user, denim textile is used as a substrate material. The conductive copper tape is used as the conducting element. The study also describes...
In this article, a duals‐band metamaterial antenna with a new composite right/left‐handed (CRLH) unit cell configuration is proposed. The antenna is a coplanar waveguide (CPW) base which uses quarter wave resonators without via. Both sides of the CPW ground plane are short circuited to the CRLH‐transmission line. The dimension is 31 mm × 22 mm × 1.52 mm, with electrical size of 0.23 λo × 0.17 λo ×...
This paper describes the design of a dual band flexible textile antenna with diamond shaped and wider bandwidth. The textile antenna is designed at 2.45GHz and 5.8 GHz Industrial, Scientific and Medical (ISM) band. The conductive copper tape is used as a conducting. In order to enhance flexibility and feel comfortable for user, the denim material is used as substrate material. This work also describes...
An ultra wideband printed monopole antenna with dual band circular polarization for wireless application is presented. The antenna dimensions are 30 × 30 × 1.6 mm3. The proposed antenna is able to cover frequency range between 2.65 GHz and 11 GHz with impedance bandwidth is around 122%. With the use of I-shape slit in the radiation element and the T-slot in the ground plane, the ultra wideband and...
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