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77 Threads found on edaboard.com: Aperture Coupled
you could use the aperture coupled feed method and the multilayer method, and the bandwidth could reach 20%.
Hi everyone, I need to help with my project in CST MWS. I have to do Design of an Electronically Beam Scanning Reflectarray Using aperture-coupled Elements as in link: but in 24 GHz. I dont know, how to do a model of varactor diode MGV-100-20 in CST.
Hello everybodo I designed an aperture coupled microstrip patch antenna ! I made 50 ohm microstrip line feeder, after optimizating the patch diemension and the aperture size, my structure resonate at the desirable frequency. My question is how to make sure that my antenna have 50 ohm impedance using HFSS!and if ti 's not, how to (...)
Hello everybody, I'm trying to simulate an aperture coupled patch antenna(rectangular)at the millimeter band with HFSS, i made my 50 ohm feed_line into 30um substrate, and my ground with the aperture above it. First of all, i triyed to simulate with a wave port (sized as hport=6 times substrate height and Wport=5 times feedline width), (...)
Hi.. I am designing an aperture coupled metamaterial patch antenna. So through which method i should implement metamaterial i.e. srr or csrr and where to implement it on substrate or patch or ground using cst.
What frequency? What array spacing? (lambda/2?) What sort of feed arrangement did you have in mind for the patches? (probe/aperture coupled/edge fed?) Any phase shifts between the driven elements for beam steering? While all of the above are essential to know from an implementation viewpoint, fundamentally the design of a 1x2 phased array is p
Dear friends, I am trying to design a u-slot aperture coupled patch antenna in millimeter-wave band (about 30 GHz) using CST and according to the picture attached. I have a few problems in the procedure: 1- I can not find "foam" in CST material library so I think I should make a new material myself. But the problem is that only the εr of
hello I want to simulate the aperture coupled micro-strip antenna, and i have the parameters of this antenna, just i want to know how to design waveguide port, i tried to use 3*wf X mt+5*hp:wf is width of feed line,and hp: high of substrate of patch, but for microstrip antenna,you know in this antenna, the feed line and patch are on the same s
I have designed a 1x5 element aperture coupled array antenna at 60 GHz. I want to have side lobes levels at -15dB from main beam.. How can I achieve this..Theoretically the separation between elements should do the job but I have tried separation between elements from 0.5--0.9 Lambda and still no suppression of side lobes.. Any ideas people.. A
Hi all, I am confused on how to feed a monopole antenna with a stripline feed in HFSS. Should the stripline be within the substrate and be connected to the antenna with a coax cable or aperture coupled. Only the feed part has the partial ground. Thanks a lot for advice.
hi friends does any one have the electric field expression for aperture coupled microstrip antenna. how to obtain its radiation pattern? help me in this regard
Hi all members, I have been asked by my Professor to design the following antenna and try to optimize it by increasing its BW to 4 GHz..I am getting a BW of only 2GHz. 87464 87465 I have experimented by varying the stub length and slot length as per reading some papers but still got nothing..
Hi Divya.S Bandwidth can be increased creating more than one resonance. aperture-coupled patch is a suitable feeding method that allows this. How are you feeding the patch? Other methods are stacked patches and coplanar parasitic elements, among others. Look for chapter 9 of "Microstrip Antenna Design Handbook" by Garg, Bhartia, Bahl, and It
i have optimise a frequency recofigurable aperture coupled patch antenna with antenna substrate as FR4(K-4.4) having thickness of 0.7mm but i m getting very less bandwidth so how can i increase the resonance bandwidth with these specifications?
Recently I am reading on microwave waveguides, especially the case a feed waveguide coupling to another waveguide with short end (a cavity) via an aperture. (Collin, "Foundations for Microwave Engineering", Chapter 7.6). I have a question and I will really appreciate if anyone answers it and helps me understand more. The aperture looks like a sh
hello i want to know that how to fabricate the aperture coupled antenna. as i know in aperture coupling, the ground plane is separated by two substrate or we can say ground plane is use to be situated between two substrate. so for fabrication process if we use single side FR4 sheet if we want to fabricate using Fr4, one side of the sheet (...)
What is the criteria to decide on the position and size of waveport in aperture coupled Microstrip patch antenna and linefed microstrip patch antenna???
Hi, I am trying to simulate a aperture coupled patch antenna, i have many problems in design of waveguide port with CST and when the simulation begins, it always been aborted automatelly with the error: The current settings will probably lead to a very long simulation time. You may improve the simulation speed by: 1. check the freq. range a
Hi, I am trying to simulate a aperture coupled patch antenna, i have many problems in design of waveguide port with CST and when the simulation begins, it always been aborted automatelly with the error: The current settings will probably lead to a very long simulation time. You may improve the simulation speed by: 1. check the freq. range a
Hi, I am trying to simulate one of Jose. Encinar's paper titled " Reflectarray element based on aperture-coupled patches with slots and lines of variable length ". The design consists of four layers. I am not able to get my simulated results matched with the paper results using CST. Can anyone help me how to design multilayer structure with proper