U Slot Antenna
Posted By admin On 04/04/22
AbstractA compact quad-band microstrip slot antenna applied to WLAN/WiMAX applications is proposed in this letter. This antenna has a simpler structure than other antennas designed for realizing quad -band characteristics. It is just composed of a microstrip feed line, a substrate, and a ground plane on which some simple slots are etched. Then, to prove the validation of the design, a.
- 158 Wongsan and Kamphikul (a) (b) Figure 3. A1×4 slot array antenna with PEC reflector.(a) Front view. S 11 (dB) 11.5 Frequen 22 cy (GHz).5 3-35 30 25 20 15 10 5 0 Figure 4. Simulated results of return loss (S11)of1×4 slot array with and without PEC reflector.woodpile EBG structures for reducing the side and back lobes of the directional antenna as mentioned.
- The slot antenna, consisting of a narrow slit in a ground plane, is a very versatile antenna. With modification, it is amenable to waveguide, coplanar waveguide (CPW), coaxial, slot line, or microstrip feeding schemes and has been used in all aspects of wireless and radar applications.
U Slot Antenna Signal
U Slot Antenna Booster
There are many techniques to improve the characteristic of antennas. In this work we use ideas of the fractal. The purpose of this project is to design and analyze Hilbert curve fractal antennas to get the empirical and electrical model. We use the Zealand program for simulating antennas. The antennas receive and transmit in many frequency resonances. We design a small Hilbert curve fractal antenna. We analyze this antenna by using the concept of the CPW transmission line and the mathematical definition of fractal to yield the models for Hilbert curve fractal antenna. From these models we can predict the multi resonance frequency. In the experiment we found that the least percent of difference for electromagnetics formular model with the experiment (0.4%) is lower than the least of the difference for empirical model (4.43%) because the electromagnetics model used the transmission line model while the empirical model used the numerical method. These models will be helpful for design and making Hilbert curve fractal antenna.