38 P. HAZDRA, M. MAZÁNEK, J. ČERMÁK, WIDEBAND RECTANGULAR PATCH ANTENNA USING L-PROBE FEEDING SYSTEM distinguished how the bandwidth is influenced by a vari-ation of Lv and Lh (described in Fig. 1); the result is shown in Fig. 2. Dielectric used in simulations was air. From the analysis, we can observed that the biggest Bandwidth Enhancement Using Single Slot in Heptagonal ... We used coaxial probe for connecting microstrip patch dimensions a= 6 mm and b= 10 mm as shown in figure antenna at coordinates (2.5mm, 1.5mm) and same arrangement is used the conventional as well as the Slotted heptagon microstrip patch antenna. To get the improved bandwidth, a rectangular slot of dimensions 7.25mm×1mm at point (-3, 0) has ... Gain and Bandwidth Enhancement of Rectangular Patch Antenna ... slot are studied. The results indicate that rectangular patch antenna with trapezoidal slot offers a much higher bandwidth (13.15%) in comparison to the conventional rectangular patch antenna (4.2%). Results also show that the gain of the modified antenna is improved w.r.t. the conventional antenna Slot Antenna If we can excite some reasonable fields in the slot (often called the aperture), we have a slot antenna. Figure 1. Rectangular Slot antenna with dimensions a and b. To gain an intuition about slot antennas, first we'll learn Babinet's principle (put into antenna terms by H. G. Booker in 1946).
will help to design a antenna with improved bandwidth and effeciency. Key words : microstrip patch antenna, slots, bandwidth, gain, efficiency. .... dipole antenna with rectangular slot reflector for wideband application”, IEEE ECT 1, pp 200-203 ...
A novel design of broadband patch antenna is presented in this paper. The broadband property of the proposed antenna is achieved by choosing a proper selection of dimensions and positions of slot and notch on the radiating patch. The bandwidth of the proposed antenna is found to be 30.5% with operating frequency band from 1.56 GHz to 2.12 GHz. Implementation of rectangular slit-inserted ultra-wideband ... In this paper, a tapered slot antenna capable of ultra-wideband communication was designed. In the proposed antenna, rectangular slits were inserted to enhance the bandwidth and reduce the area of the antenna. The rectangular slit-inserted tapered slot antenna operated at a bandwidth of 8.45 GHz, and the bandwidth improved upon the basic tapered slot antenna by 4.72 GHz. DGS Based Coaxially Fed Microstrip Slotted Rectangular ...
In this paper, a tapered slot antenna capable of ultra-wideband communication was designed. In the proposed antenna, rectangular slits were inserted to enhance the bandwidth and reduce the area of the antenna. The rectangular slit-inserted tapered slot antenna operated at a bandwidth of 8.45 GHz, and the bandwidth improved upon the basic tapered slot antenna by 4.72 GHz.
13 Nov 2013 ... Also, the self-impedance of the rectangular slot is highly reactive with small real impedances if the ... As a measure of bandwidth improvement. Enhanced-Gain Planar Substrate-Integrated Waveguide Cavity ... A novel substrate-integrated waveguide (SIW) cavity-backed slot antenna is ... The peak gain is remarkably improved with the use of an SIW cavity and metallic superstrate. The superstrate comprises a single rectangular slot window and two ... include a wide bandwidth, when compared with a microstrip patch antenna, and ... A Dual-Polarization Slot Antenna Using a Compact CPW Feeding ... isolation between the two ports in the WLAN band is better than. 32 6 dB. ... Square patch an- tennas fed by ... slot antenna is proposed for wideband dual- polarization ap- plications ... To meet the specification of wide bandwidth, simplicity, and. A compact wide slot antenna with dual band-notch characteristic for ...
Design AND Simulation OF U-Shaped Microstrip Patch Antenna WITH…
Improving Wimax Reception at 3 GHz | Microwaves & Radio… A simple dielectric resonator antenna design provides improved Wimax performance in the 3-GHz band. ISSN:2321-1156 The design structure components of antenna become small in operating frequency band of designed microstrip patch size and have low processing cost [3]. antenna is 1.456-3.104GHz with 72.28% fractional bandwidth .The gain has been improved … A rectangular slot antenna with improved bandwidth A rectangular slot antenna fed by microstrip line is proposed, which produces a very large bandwidth on a relatively thin substrate. Simulated and measured results show that there is an improved bandwidth, a relatively stable pattern and that its fabrication is easier than that for the conventional slot antenna. A rectangular slot antenna with improved bandwidth
Aug 26, 2017 ... An Inset Fed Square Microstrip Patch Antenna to Improve the Return Loss Characteristics for ... Therefore, we add diamond – shaped slots on the patch ... bandwidth as much as 46 MHz and a reduction in the return loss level ...
The band width of a narrow rectangular slot is equal to that of the related dipole, and is equal to half the bandwidth of a cylindrical dipole with a diameter equal to the slot width. Figure 2 shows slot antennas different from the rectangular shape that increasing the bandwidth of the slot antenna. ENHANCEMENT OF BANDWIDTH OF RECTANGULAR PATCH … decrease the size of the antenna [7, 14] and to improve the bandwidth of the antenna [8, 9, 15]. Handset antenna has been reported with wide bandwidth [10]. Half U-slot patch antenna with shorting wall reported in [11] with 28% impedance bandwidth. In this paper, broadband patch antenna with two square slots across its side surface is proposed Investigation of Microstrip Line and CPW Fed Asymmetrical The overall dimension of the antenna is 90mm x 90mm. The open slot antenna is fed by a 50- microstrip line of width 3.08mm and length 52mm. A dielectric substrate of r =4.4 and height h=1.6mm is used. To obtain improved bandwidth four rectangular slots in T-shape with … Bandwidth Enhancement of An Inset-Fed Rectangular Patch In this paper, conventional inset-fed rectangular patch antenna was designed, simulated, analyzed and modified in other to improve on its bandwidth. Patch antennas inherently have narrow bandwidth, which makes them have restricted areas of application. In other to enhance this narrow bandwidth, this paper combines the use of both the partial ground method and edge-cut techniques of bandwidth
Broadband Circularly Polarized Cross Shaped Slot Antenna with ... Broadband Circularly Polarized Cross Shaped Slot Antenna with an Improved Feedline Kwame O. Gyasi, Guangjun Wen, Yongjun Huang, E. Affum, and Wei Hu Abstract—A broadband circularly polarized cross-shaped slot antenna with a parasitic cross-shaped patch and an improved feedline is proposed for wireless applications between 3–6GHz. In order to E SLOTTED RECTANGULAR MICROSTRIP ANTENNA WITH COAXIAL FEED ... FDTD algorithm in MATLAB and compared for a non slotted microstrip patch antenna, a rectangular slotted microstrip patch antenna and an E slotted microstrip patch antenna. From the simulated results, Bandwidth for the rectangular slotted antenna and E slot design is found to be as large as about 2.4 times and 3.149 times