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This paper presents a U-shaped stub fed with coplanar wave guide (CPW) line and microstrip line to achieve ultra-wideband characteristics. Two kinds of antenna prototypes are designed, fabricated and measured. A1: CPW-fed U-shaped stub placed in a rectangular wide slot and A2: microstrip line fed U-shaped open stub. Both the antennas are designed on FR4 Epoxy substrate of thickness 1.6mm. Simulated...
This paper proposes an Ultra Wideband Microstrip Patch Antenna for Wireless Capsule Endoscopy. An approximate model of the human gastrointestinal environment is designed with CST Microwave Studio, and the antenna is placed in the center. The antenna is small and bent in a fashion so that it can easily be accommodated inside a capsule. Ultra Wideband technology facilitates higher data rate, resulting...
Antennas are important components of Wireless Capsule Endoscope (WCE) that has been explored due to its non-invasive nature compare to the traditional endoscopy. The main challenges of these antennas include data rate of the telemetry system, miniaturizing the capsule, propagating efficiency of the antenna in the vicinity of human body. In this paper, a miniature Ultra-wideband (UWB) antenna is proposed...
In this paper, a new compact spectacles shaped patch UWB antenna using a microstrip fed line is proposed. The new design is consist of a spectacles shaped patch along with tapered slot ground plane.The proposed antenna has a compact electrical dimension of 0.24 λ × 0.21 λ × 0.016 λ and fed with a 50-ohm microstrip transmission line. Computer Simulation Technology (CST) based on finite-difference time-domain...
In this paper, we present the simulated design of a dual-polarized H-shaped aperture-coupled microstrip antenna for ultra-wideband radio frequency identification (UWB-RFID) applications. The antenna has a compact design (30 × 30 × 6.9 mm3) with a hybrid structure. The feed portion is on a Ferro A6M low-temperature co-fired ceramic (LTCC) substrate, while the square patches are deposited onto Rogers...
An ultra-wideband (UWB) W-shaped patch antenna with defected ground is presented in this paper. Design, simulation and the analysis of the proposed single layer line feed antenna is done in CST Microwave Studio with 10.3 GHz operating frequency. The simulated results reveal that, the presented W-shaped line fed antenna offers a very wide bandwidth of 507 MHz ranging from 10.146 GHz to 10.653 GHz....
The radiation performance of a circularly polarized (CP) single probe-fed truncated corner square microstrip patch has been enhanced by employing (i) a metal (PEC) ring contouring the patch on the patch side of the CP antenna, and (ii) a multi-section ring defect in the ground plane (GP) of the CP antenna. The concept has been validated by designing a CP patch with a conventional GP, a CP patch with...
The need to high frequency applications with small packaging require to use microstrip and printed antenna with developing technique to go forward with advanced technology today. Miniaturization usually comes at a price of reduced bandwidth, in this paper; the bandwidth enhancement techniques for microstrip antenna is presented with a major emphasis on the recent trends of minimization techniques...
A microstrip line-fed slot antenna is presented in this paper to operate in the entire 4G/LTE band. The slot antenna has the letter ‘L’ shape, and when excited with a transmission line generates multiple modes. These modes are combined to obtain the large bandwidth for covering most of the 4G/LTE band. Several feedlines have been studied to enhance the bandwidth. The slot width is also varied to achieve...
This letter proposed a 150 MHz C-shaped meander line inverted-L antenna, which can be embedded in land mines. First, a radiation element of monopole antenna has been transformed to an inverted-L form by turning it to be parallel with the ground. Then, it was designed to a size allowing insertion in a land mine by designing the radiating element being parallel with the ground into C-form by using a...
A Multiband microstrip antenna for Industrial, Scientific and Medical Band (ISM Band) application is proposed in this paper which have a working frequency at 902 – 928 MHz, 2400 – 2480 MHz and 5150 – 5350 MHz. The antenna design uses FR4 substrate with a relative dielectric constant 4.4, thickness 0.8 mm and has a simple structure with small size of 32×72 mm2. The simulation result showed impedance...
In this paper, a reconfigurable triple notched-band UWB (Ultra Wide Band) antenna is presented. This compact antenna covers the frequency range from 3.1 GHz to 11.21 GHz. In order to reject a three frequency bands including the WiMAX (3.2–3.6 GHz), WLAN (5.15–5.85 GHz) and X band (7.25–8.395 GHz), we have inserted three different slots in the radiating patch; two C-shaped slots and a rectangular slot...
In circularly polarized radiation, the rotational orientations of the transmitter and the receiver antennas are unimportant in relation to the received signal strength. In this paper, a center square slot cut elliptical patch microstrip antenna to realize a tunable circular polarization in 1000 MHz frequency band is proposed. It yields axial ratio bandwidth of nearly 1.2% over tunable range. A rectangular...
Small cell mesh wireless systems capable of high data rates seem likely to play a key role in the new proposed IEEE802.11ad based 5G networks. Key to these architectures will be antennas that can both support very wide bandwidths and at the same time deliver high gain performance whilst maintaining omnidirectional characteristics. Such attributes are often considered to be mutually exclusive or require...
In this article, a printed planar low VSWR monopole antenna with a new modified ground plane for ultra-wideband (UWB) and 2.6 GHz LTE-band applications is presented. The dimensions of proposed antenna structure are optimized to achieve low VSWR performance. The antenna is fabricated on a low cost FR4 epoxy substrate and tested. The proposed antenna return loss is below −15 dB within bandwidth 2.5–13...
This paper presents recent developmental work on a low-profile ultra-wideband disk-loaded monopole. A novel single port feed configuration is investigated were the RF power is split and circulated by a branched transmission line network. This is composed of a balanced stripline and capacitive coupling network which both excite a metallic disk radiator. Measurements and computations show that the impedance...
In this paper, we demonstrate the importance of precise reflection response control of enhanced-bandwidth antennas by means of automated simulation-driven optimization. In particular, a proper adjustment of antenna dimensions may lead to considerable broadening of the bandwidth even for small topological modifications of the structure. Computational efficiency of the design process is achieved by...
Planar antenna array on a Femtosat is used to establish inter-satellite communication link using V-band with very high bandwidth. In this paper, the results are presented for a compact metamaterial inspired coaxial fed microstrip antenna which is designed to work at 60GHz with an impedance bandwidth of 6.5GHz. Beam steering for 7×1 array is also presented. A 7×7 planar array of the same is designed...
A coplanar waveguide (CPW) — fed compact cupcake shaped printed antenna is proposed for UWB applications. Cupcake structure is formed by capping an ellipse (eccentricity = 0.95) over a semicircle (radius = 12mm). The bandwidth is enhanced by loading an ellipse over the semicircular patch and using CPW ground plane. The antenna parameters are simulated and optimized using Ansoft HFSS electromagnetic...
The proposed dipole antenna consists of the elliptical shaped driver, a tapered ground and a CPW-fed to a CPS transition. The proposed antenna offers a decreased an electrical size, and improved input impedance match than a conventional dipole antenna. Measurement results show a good operating impedance bandwidth and a radiation pattern.
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