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This paper proposes a multiple input multiple output (MIMO) array antenna operating at 5.8 GHz using multiple layers of bendable Polydimethylsiloxane (PDMS) substrate. It features favorable mechanical properties such as flexibility, softness, water resistance and transparency. Moreover, its dielectric properties can be modified by loading the PDMS substrate with other contents to suit specific RF/microwave...
A patch antenna design for switchable beam steer ability is proposed in this research. The presented antenna has successfully achieved beam steer functionality at four angle directions of +179°, −14°, +3° and 14°. The novel design of spiral feed network and differences of radiating element sizes have eventually helped to steer the main lobe radiation. Moreover, the switchable antenna is achieved by...
The most common gene vectors used are virus based (viral gene vectors). These possess high immunological risk, so a non-viral gene vector maybe preferable. Nanocrystalline hydroxyapatite, HAp [Ca10(PO4)6(OH) 2 ] is an example of a possible non-viral gene vector. This is due to its good biocompatibility, bioactivity and proven results as a non -viral gene vector. The HAp particles produced...
This paper discuss about designing a dual frequencies monopole antenna with side feed. The antenna is required to operate at a frequency of 2.3 GHz and 2.45 GHz simultaneously. This proposed antenna is designed based on T-Slot antenna. With combination of stub at the left, it is observed that the capabilities of dual band frequencies have been successfully achieved. Moreover, HPBW of 160.3° with gain...
A single-coaxial feed circularly polarized (CP) patch antenna is designed using the U-slot patch technique. With the presence of U-slot, the antenna patch on 3 layers of FR-4 substrate (dielectric constant = 4.7), is able to cover the range of frequency of 2.28 to 2.58 GHz. The size of patch 0.21λ X 0.21λ, while the ground is 0.39λ X 0.39λ, and the thickness of substrate is 0.038λ. The measured gain...
A circular polarization corporate feed antenna with dual frequencies of 1.575 GHz and 2.3 GHz is presented in this research. The antenna consists of 2 circular radiating patches with the transmission line are divided into two branches. Two different circular patches are able to produce two different frequencies with circular polarization (CP) capacity. With gain of 4.108 dB and 4.23 dB, return loss...
This paper describes the design of multiple element of co-polarization elliptical patch antenna operating at 2.45GHz. Computer Simulation Technology (CST) Microwave Studio is used as an effective tool for 3D electromagnetic simulation of high frequency design. In this paper, different dimensions with three elliptical shaped slots are implemented and attached with main radiating element while power...
This paper presents a triple-frequencies of co-polarization Yagi Patch antenna dropped at desired frequency 2.3 GHz, 2.4 GHz and 5.8 GHz. Computer Simulation Technology (CST) Microwave Studio will be introduce as an effective tool for 3D electromagnetic simulation of high frequency components. The analysis on performance will be based on the obtained results especially in return loss, bandwidth, surface...
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