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43 Threads found on edaboard.com: Probe ie3d
Hi..i m working on a pentagon shaped patch antenna for 4-12 GHz frequency range with a design frequency of 7.5 GHz. I m trying to use coaxial probe feed. I found good results at one location on patch but the patch is not resonating at designed frequency. How do i optimize the probe feed to obtain resonance at designed frequency?
plz.. help me to construct a stacked microstrip patch antenna in zeland ie3d.... how to joint a single feed to both the antennas in stacked configuration both in software as well as hardware? and please tell me the procedure how to do probe feeding to yeald at maximum gain.
the circular match antenna raidus is taken as 27.7mm While modelling the coaxial probe feed to patch , the inner and outer diameters of the probe are taken as 1.3mm and 4.1mm respectively. it is loacated at a radial distance of 9.9mm fromthe center of patch towards its cicrcumference. A shorting patch is located at center with radius 0.5mm is conne
I have been designing a Radar planar antenna at low frequency. The height of the substrate is h=15mm. So the practical antenna is showing an added +34j (50 ohms matched value) inductance then the simulated results. To model this antenna correctly in software (ie3d) i need to add this inductance to port ..... How can i do that in software?? Please
I want to design a microstrip antenna with probe feed from one side and not from below. the probe feed for patch option is not allowing to change the axis of the probe. I can create the probe as a cylinder but can not put a port at one end of the cylinder. It would really be of great help if someone has some suggestion.Thanks.
Hello all I am having a problem regarding ports in ie3d.I have simulated a geometry separately with advanced extension port and probe feed (with rad 0.63 mm). Feed position is same in both cases.But I am having completely different results.I cannot reason if anyone can please help.
I suggest u donnot try to model a complete coax in ie3d. It would be not only tedious but also unreliable. You can just use the strip model of the probe feed to simulate the antenna impedance. If the antenna impedance is adjusted to the desired 50 ohm, the combination of the antenna and the coax feed in the real world should work OK.
Hey Could you help me please , I want to see the effect of feed location on freq, Return loss & Bandwidth by varying the feed location along the length of the patch from the origin (center of patch) to its right most edge. The coaxial probe feed used is designed to have a radius of 0.5mm. the length and the width of the patch L = 22 mm,
hello, i want to know how can make L shaped coaxial probe feed using ie3d.PLEASE SOMEBODY HELP ME BY STEP BY STEP PROCEDURE. THANX REGARDS SAMEER
I am a new learner of ie3d. When simulating a L-probe feed patch antenna from a journal paper, its results are different from those shown in that paper. Would you mind helping me to solve it? The paper about the antenna is also attached in the rar file. Thanks.
Hi, I try to simulate an antenna from the book "Compact and Broadband Microstrip Antennas" in ie3d program. The books state that the design was also simulated in ie3d, however, my graph of the return loss is significantly different. My initial thought was that my probe feed was too big, however, making it smaller hasn't help. I've attached (...)
Hi to All, I'm newbie in antenna design and ie3d too. Where i can find the tutorial for probe Feed Microstrip patch antenna
Hi all! I'm new with simulation and antenna design. I'm triying to simulate a probe-fed rectangular patch antenna on a finite ground plane. I designed this antenna by transmission line model using fiberglass as dielectric substrate with Er=4.4 and h=1.52mm. The size of this patch is L=29.47mm and W=38.03mm. The size of the ground plane is Lg=3
hi frens, I did simulate the same set of antennas using ie3d and HFSS but did end up with different results.Did feed wid the same probe feed...how come the result be different..the resonance frequencies are real different in both cases.. Have you come across the same?? P.S. I did check one of a paper they had given the result from both the si
There are a few probe-fed examples in .\ie3d\examples and .\ie3d\training folders.
Phamton_gr: Normally, you don't need to have extra finer meshing for the probe location as long as you apply AEC. The s-parameters should be quite reasonable. However, if you really want to make some portion of the structure to have finer meshing, you can use ADV EDIT->MESH AND MERGE->MESH SELECTED POLYGONS. Regards,
HELP needed in designing a probe-fed shorted patch antenna operated at dual bands of 1.8 and 2.45 GHz. attaching the .geo & geometry. plz tel me where i wnt wrong, also if possible plz attach correct .geo file. thank-you
Hi,I'm now using ie3d software to draw my antenna design.Currently,I only draw out the patch and assume there is infinite ground plane.I'm using coaxial probe feed technique.But how can I define my dimension for my dielectric substrate since I cannot see the substrate block appear in 3D view?Or can use ie3d to draw out my substrate? Or can I (...)
When i am inserting a probe feeding to an antenna in ie3d,while defining the port, it is asking for positve and negative level and also the radius. Can anyone tll me how to choose their values and define the port
Hi, Neil: Your antenna is a modified inverted-F antenna. The probe and the shorting pin form a very small loop (compared to wavelength). It is causing very strong current concentration in that region. The strong current concentration there is causing much metallic loss even the sigma = 4.9e7 s/m. You will see the return loss is reduced significa
Please use the command ADV EDIT->BUILD WIRE PATH after you enter a series of vertices to represent the center line of your probe (any shape). You have the option to build ports at each vertex of the series.
someone pls help me..whats wrong with my design..i use L-probe to simulate my design..unfortunately the return loss is not convincing..i attached the .geo and .spt below....thanx
Hello, I am trying to simulate a coaxial-probe-fed microstrip patch antenna to achieve some proven data. I am using ie3d EM Design System , Version 14.04. I used finite groundplane by defining No0. layer's conductivity to be 0, then drawing a rectangle as the metal ground. I used the method from section 16.2 of the ie3d manual to (...)
hello to all,anybody knows what is the radius of probe normally used in the ie3d for coaxial and L-probe..pls tell me..thanx
i want use from resistor in the near probe fed to patch but i dont know. please helped to me so that i use from resistor. Thanks You can add lumped elements to a stucture on Modua and simulate the resulting system. In Mgrid/ie3d, you can define ports at the place where lumped elements are to be connected. Do EM simulatio
Define Port or Port for Edge group --> Infinite Ground Plane. Vertical Localized Port or probe Feed to Patch --> Finite Ground Plane. I suggest you to read ie3d Manual where above things are well-explained with examples regards, balaguru.
Hi, junta99: I believe either the "probe-feed to patch" parameters are not correct or you may not define the finite ground plane correctly. You can send your .geo file and tell your "probe-feed to patch" parameters to me (jian@zeland.com) and I can help you. Regards.
Hi, Goli: Please do the following: Enter 3 vertices for your L-shaped probe. For example, you enter the No.1 vertex touching the gnd at (0,0,0). The 2nd vertex above it for the bending point at (0,0,1). The 3rd verex at the end of the L-shaped probe at (3,0,1). You can use INPUT->CREATE AND EDIT VERTICES command to create or use mouse and the
Actually, the effect of the probe can be accurately modeled in the simulator. You can include the probe and optimize the S(1,1) < -10 dB.
Hi, Atul: 1. The probe-feed is for coaxial fed structure. It is very accurate and it is demonstrated in many papers. 2. There are examples in the ie3d Manaul and you can access the electronic version in the HELP menu of MGRID. Alos, there are examples in the Zeland Virtual Training in the Download of . The Zeland Virtual Train
Hi, abhi: There are multiple ways: 1. If you are doing it on ie3dLibrary or the parameterized GUI, the x and y of the probe can be equations of tuning variables. It is simple. 2. If you are doing it on MGRID, you may do it in 2 ways too: (a) You can select all the vertices of the probe and define it as a variable, please define (...)
Hi: Yes. probe-feed is a good way. To build one or multiple probe feeds on ie3d, you just enter a series of vertices as if you are entering a polygon on the patch level. Then, you select ENTITY->probe FEED TO PATCH. You enter the radius value and change the default settings for other values. Select OK and (...)
Hi, KBmani: I assume you know how to simulate a probe-fed antenna on ie3d. Assume you have a probe fed antenna with a diode. What you should do is the following. 1. Build 2-ports to represent the probe-feed and the diode. 2. Simulate it. 3. On current distribution or radiation, you should specify the excitaiton for (...)
Hi, Chest: From the look, it seems that it is modeing a finite ground patch in the manual while your built is modeling a patch on infinite ground. In order to make it finite ground, you need to define the No.0 layer's conductivity to 0 or some very small value, and put some polygon(s) to represent a finite ground before you build the probe feed.
hi, i am trying to simulate probe fed microstrip antenna array with different amplitude and phase of the signal at different antenna( feed points).how it is to be done in ie3d?? how i can probe feed with some specified amlitude and phase for diferent feeding probes for different antenna elements in an array?? with (...)
Hello, I need to design a L-probe fed p.a.t.c.h antenna. I tried to follow the help but it was not so helpful. Could anyone tell me how to draw the L-shaped probe in ie3d. Should I use the command 'entity---probe feed to patch' or make a hole in the ground plane?
Point number 3 is also there in the ie3d users manual. But dont know why!! In fact I always neglect the 3rd point bcause 4th point itself can take care of the location of feed point. Hi, abhishek.vnit: Thank you for your posting. On ie3d, there is a command called ENTITY->probe FEED TO fix. What you should do is the following:
For infinite gnd and substrate 1. You need to change the connector dia according to requirement. 2. Change feed impedance to 100 in Modua For finite gnd and substrate just draw the entire feed including inner and outer conductor of the coaxial probe. Hi to all, I am presently engaged in design of folded P.A.T.C
HI, Winglj: (1) I seems to me your procedure is correct. You are supposed to be able to define a probe location as an optimization variable. Yes. You should select all vertices on all layers for it. This procedure is shown in the Zeland Virtual Training in . (2). Please define the Negative Level at the ground (z=0) and Positive leve
You can use ie3d's initial value... In ie3d manual, it writes something about probe feed model.
Hello people!! actually i have a problem: when i use a 50 ohm strip line (with a "50 ohms for waves" port ) to feed the structure i get a result, but if i use a "probe feed" port (which have Zc=50 ohm to, i think) in the same point , i get a diferent result (an important diference)... they have to be similar, haven´t? if you have so
hello everybody! i'm building a microstrip antenna array for around 500MHz and in order to increase the BW i'm interested in using a t-probe. can anyone help me or direct me to where i can find articles or info about t-probe , and does anyone know how to design it on zeland's ie3d? thanx! pzizi
Who can comment on the accuracy of probe feed model in Momentum?