Effect van slots op microstrip-antenne

radius and slot width [5]. In recent years, some papers were reported for Dual/triple band operation by using single/double U slot in the microstrip antenna. It is seen that the applications which require dual frequency operation with small frequency ratio were designed by using the U slot in a wideband micro strip antenna [6].

In this paper, a rectangular slot based microstrip patch antenna is designed and their analysis is done to evaluate their effect due to rotation of slot for wireless communication applications. The proposed antenna is suitable for • A rectangular type microstrip antenna with semi-ring shaped slot provides S 11 = -22 dB at 2.89 GHz and is can provides dual band result [7]. • The serrated-edge N-shaped slotted microstrip antenna feature S 11 = -21 dB at 2.1 GHz which can be used for WLAN, WMAN and Blothtooth applications [6]. the E- Shape Microstrip antenna. The coaxial feed technique is used for the analysis of this antenna because it occupies less space and has low spurious radiations by using Teflon connector. The Method of Moment (MOM) [2] is used to discuss the electromagnetic radiation characteristics of the microstrip antenna. II. microstrip antenna. The detail dimensions of the proposed antenna are given in Figure1. Figure 1: Configuration of proposed patch antenna. In order to investigate the effect of the shape parameters of the slots on the proposed antenna, we simulated two prototypes with all the other dimensions of the patch and the feed position unchanged. Dual frequency M.R. Thansekhar and N. Balaji (Eds.): ICIET’14 1382 Design of Wideband U slot Microstrip Antenna h=1.6mm Step 1: Calculating the width of the microstrip patch: The width of the microstrip patch antenna is given as: c (1) w r 1 2 f0 2 Step 2: Calculating the length of the microstrip patch: The length of the microstrip patch The microstrip antenna is a relatively modern invention. It was invented to allow convenient integration of an antenna and other driving circuitry of a communication system on a common printed-circuit board or a semiconductor chip (Carver and Mink, 1981; Pozar, 1992). Computed values based on (14-18a) show that usually g 12 1; thus (14-56a) is usually a good approximation to .D AF = 2 1 + g 12Asymptotically the directivity of two slots (microstrip antenna) can be expressed asD 2 = 6.6(dimensionless) = 8.2 dB W λ 0 8 W λ 0 W λ 0 (14-57)The directivity of the microstrip antenna can now be computed using and

3 days ago such as reflectors, horns, slots, or wire antennas. However, the electrical performance of the basic MPAs or array suffers from several serious

A novel compact microstrip antenna design is demonstrated. By embedding meandering slots in the antenna's ground plane, it is observed that the resonant frequency of the microstrip antenna is significantly lowered, which can lead to a large antenna size reduction for a fixed frequency operation. de mini-whip in op zo’n 10 meter van het huis redelijk goed. Belangrijk is verder dat de actieve “kop” op een niet-geleidende staaf/mast gemonteerd moet worden (b.v. PVC-pijp) en zover mogelijk van metalen voorwerpen verwijderd blijft. De door mij gebouwde mini-whip wijkt op een aantal punten af van het originele ontwerp van PA0RDT. 01/06/2012

This paper presents an investigation of the properties of square slot microstrip patch antennas. These antenna geometries are obtained by printing square slots in the conducting patches of rectangular microstrip antennas. Measured results of the return loss versus frequency are used in the ANN training. A particular set of measured results is used in the validation of the ANN. The effect of

antenna. In this paper we have seen the effect of slot on microstrip patch antenna. By the use of slot we can enhance bandwidth, gain e.t.c.. Return loss is reduce. Axial ratio and radiation pattern is also improved. By the use of slot microstrip antenna can be used in many application. The effect of slot has been studied by varying length and width of slots. Table 3 reveals as the length of slot varies from 3 mm to 14 mm with fix width 1.5mm, the resonant frequency of the The microstrip antennas have been designed on ε r = 4.3 and h = 1.53 mm. It has been observed as the slot length increases the resonant frequency shifted to the lower side by 19.05 % and 5.04 %

This thesis presents the design and analysis of U slot and W slot rectangular microstrip antenna fed by microstrip line. The proposed antennas use Rogers RT/ duroid 5880 (tm) in its substrate. The

09/02/2021 This paper presents the effect of the slots in ground plane and patch on resonant frequency, impedance bandwidth, gain and side lobe. The microstrip antennas have been designed on ε r = 4.3 and h This thesis presents the design and analysis of U slot and W slot rectangular microstrip antenna fed by microstrip line. The proposed antennas use Rogers RT/ duroid 5880 (tm) in its substrate. The antenna. In this paper we have seen the effect of slot on microstrip patch antenna. By the use of slot we can enhance bandwidth, gain e.t.c.. Return loss is reduce. Axial ratio and radiation pattern is also improved. By the use of slot microstrip antenna can be used in many application. In this paper, a rectangular slot based microstrip patch antenna is designed and their analysis is done to evaluate their effect due to rotation of slot for wireless communication applications. The proposed antenna is suitable for

Data obtained from simulation with variation of the height of the transformed antenna and its effect can be used to predict the antenna parameters including resonant frequency, return loss, power radiated, directivity and gain for a multilayer microstrip antenna subjected to the limits for the thickness of the superstrate layer (0.254mm-2.54mm).

slot gaps. To observe the slot’s effect, the simulated return losses against various slot gaps for the antenna are depicted in the above figure. It is clear that a thinner slot gap is mainly working for a lower operating frequency of the antenna. This is because an intense capacitive coupling occurs around the thin slot. The aim of the project is to design u-slot rectangular microstrip Patch antenna and to study their radiation pattern, return loss, VSWR, gain and directivity. Length and Width of the antenna can be predicted using the design equation. Microstrip antenna is simulated by Ansoft HFSS software which has its operating frequency range (5.18-5.8)GHz.