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26 Threads found on edaboard.com: ro4003
If your substrate is FR4, you can see various manufacturers supporting amateurs such as seeedstudio Fusion PCB or other similar manufacturers. I have used seed's service many times. If your substrate material is different than FR-4 such as ro4003, RO4350, you need to look for professional manufacturers and it will cost much more.
Hi everyone I have designed a coupled-line filter at X-band using Ro-4003 with 8mil of thickness. Rogers Software (MWI-2016) suggests dielectric constant of 3.81 for this substrate, this thickness, and at X band. this number has significant difference with popular dielectric constant for RF design using ro4003 (I mean 3.5
Can anyone recommend an affordable microwave PCB manufacturer. Got one quote for a 25 sq. in ro4003 2 layer for $500 each qty 2. Seems expensive to me, I am used to FR4 boards costing $33 for the same specs.
Hi, I had designed a 4 layer PCB board for 13 GHz using ro4003 as substrate material. In oder to get the feel of designing boards at these frequencies, I started with a 50 Ohm microstrip. The microstrip forms the top layer, and the remaining 3 bottom layers are stitiched together as ground. For some reason, I see re
to choose the trace width capable of handling Power P=RI^2 you can use the following link: could you tell more about your coupler? is it using only two layers of ro4003? I think it is not possible to design 300W stripline coupler with two layers, beacause the line width will be very thin a
70551 in the data sheet,there are two different Dielectric Constant, εr,one is Process specification ,the other one is Design specification。I want to know what?s the difference and when we design a antenna,which should we use in simulation?THX.
Hi I am designing a GCPW fed Antenna to operate in frequency range of X and Ku bands. I'm using Rogers ro4003 substrate with thickness of 32mil. Kindly, help me in choosing the right SMA connector for my design. Regards
Hi, I'm a newbie in using IE3D. I have a problem on setting feed-network under ground plane. In normal cases, the default setting of Ground is at Z = 0, and the substrate is depending on what material u use. i.e, ro4003 with thickness 0.8128mm, the ztop will be 0.8128mm. Then, the feed network will be located on 0.8128mm. This setting will not g
Teflon based substrates like Rogers RT duroid 5880 mentioned above are classic teflon based microwave substrates. The material is expensive and only a few specialized PCB manufacturers can process this material. For circuits that are cost sensitive, I like the Rogers series 4000 materials (ro4003). These have good high frequency properties (lo
hi everyone i'm working on the KU band filter,12Ghz. The stripline filter confused me for a long time. i designed the filter use the ro4003 in HFSS. i test it use the via. The result was so bad ,the center frequence shifted to the left about 400M .The top of the curve is not flat so much.Test results and simulation results are quite different.
Hi everybody I am designing some microwave combiners and filters and I need two PCB laminates for them. First is ro4003 from ROGERS company and second is TLY-5A from TACONIC company. I want to buy them from china. Is there anyone who can refer me any company that It sells these type of materials? Thanks
Dear tyassin, see attached files.For increase bandwith you must use dual-offset feedline for slot feed patch.For increase bandwith you must use thick material for patch substrates like 0,81mm ro4003 for example.
Dear all, Im having a little trouble with my Via simulation in HFSS V9.2.(see attached file) Spec of Substrate: - 4mil thick, Er=3.75 - base copper thickness = 5mil, top copper thickness=1.5mil Spec of PCB used - 8mil thick, ro4003, Er=3.55 - base and top copper thickness = 1mil Do note that i am simulating this by having the substr
I'm a beginner of using IE3D and also design a antenna, I would like to ask DR Jian to help me to fix this problem, I fab this circuit in attached file and measure its S11, this is good but I can't get the same results in IE3D simulation. Is there any simulation environment error or special setting such as alignment or mesh...etc. Please give a hel
Hi, I am Saqib. I was trying to simulate a 2.45GHz patch antenna on HFSS v9.0. I m not sure if the results are correct or not. (1) Design parameters, L = 32.92mm, W=41.36mm, h=1.58, ro4003 yo= 9.93mm, Zo=50ohms with coax feeding, fr=2.45GHz The results, I obtained using HFSS and Air filled coax, seems to be similar as we found in Balani
Hi, I am Saqib. I was trying to simulate a 2.45GHz patch antenna on HFSS v9.0. I m not sure if the results are correct or not. (1) Design parameters, L = 32.92mm, W=41.36mm, h=1.58, ro4003 yo= 9.93mm, Zo=50ohms with coax feeding, fr=2.45GHz The results, I obtained using HFSS and Air filled coax, seems to be similar as
hello using fr4 at these frequencies is not a good idea, the substrate is way too lossy. the result will be an antenna with very low efficiency, the bandwidth will increase though :D . It is better to use ro4003 or another microwave substrate. Could you give some more design specs like polarization, bandwidth... best regards
I' working on a patch antenna that should work on 900MHz. The problem is that it want resonate on 900MHz. I tried three different PCB materials (fr4, ro4003, ro4350). Rectangular and square form. But it simply doesn't work. Interestingly it works on other frequencies. I'm starting to think 900 is a Satan's number (forget 666 :) ). I'm feeding th
εr of ro4003 have been changed! in the newest datasheet of ro4003 at Rogers Inc. εr is 3.55 as you may know in the past εr was 3.38. it produces considerable frequency shift between simulation and measurements.
Hello, Folks, We use a PA module and can't reach the performance in its specification with our experiment board. I suspect something not good in our fixture, so I did a simple measurement: I made a 50 Ohm microstrip with 18.3mil width and 1 inch length on ro4003 board with 8mil thickness. Put the PCB on our fixture and measure the insertion