I have designed and simulated a super wideband antenna in HFSS. Simulation results gave a bandwidth from 2.2 GHz to 30 GHz for S11 < -10 dB and other results are also good. A lossy FR4 substrate with 4.4 dielectric constant, 1.6 mm thickness and 0.02 loss tangent is used for the antenna. A tapered microstrip feed line with feed width varies from 2.95 mm to 1.6 mm is used. Now I want to measure the antenna parameters for which I need connectors useful up to 40 GHz or at least 30 GHz. Can anyone please suggest me the connectors that are suitable for my antenna. Also, provide vendor information who can supply those connectors in INDIA.
Dear Srinivasarao,
lately, some distributors provide very helpful search functions. For example, please have a look at this:
https://www.mouser.in/Connectors/RF-Interconnects/RF-Connectors-Coaxial-Connectors/_/N-89mcyZ1yzvvqx?P=1y95kifZ1yybq1jZ1yxaya9Z1yyaaxbZ1yyabqlZ1yieqxdZ1yyaawrZ1y9iq6dZ1y9ee4dZ1yyabmwZ1y9jbxq
By choosing "PCB connectors" in the column "Product", or "PCB Surface Mount" in the column "Termination Style", or "SMA" in the column "RF Series", for example, and then clicking on the button "Apply Filters" you can limit the results further.
Hope this helps.
Hello,
There is link below,
https://www.digikey.in/en/product-highlight/c/crystek/40-ghz-coaxial-cable-assemblies
https://www.mwrf.com/systems/low-loss-cables-connect-40-ghz
Thanks,
Hello Mr Srinivasarao Alluri , as you have requested the Rf Connector which can operate at 40 GHz. I would like to say that, When you are working at or beyond 26 GHz. operating frequency conventional Rf connector may not be suitable. one typically K-type RF coax connector which people may suggest works only up 26 GHz. your simulation frequency is 30 GHz. above this we may have to go 2.4 mm SMA. This will work at 40 GHz. I am giving you full detail for this in attached word document. When operating beyond 26 GHz. Rf connector, substrate became costly.
Secondly in your write up we notice you are using FR4 substrate, while simulation you may get return better then -10 dB. but when you physically realised it may give very bad result. we suggest better use RO4003 or RO4004 material which is cheep material. preferably RT 5870 . FR4 is not recommended for use at your operating frequency.
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