Register now to gain access to all of our features. Once registered and logged in, you will be able to contribute to this site by submitting your own content or replying to existing content. You'll be able to customize your profile, receive reputation points as a reward for submitting content, while also communicating with other members via your own private inbox, plus much more! This message will be removed once you have signed in.

clanon
Members-
Content count
817 -
Joined
-
Last visited
Posts posted by clanon
-
-
couldn't find it (was on a catalog) this is similar https://www.protel-antennas.com/files/22-Amplified-portable-antenna-ARK103XZ-PROTEL-HANDHELD-INTERFERENCE-FINDER-GSM-LTE-DCS-UMTS-data-sheet.pdf
1 person likes this -
@eco32 you NEED to try CST...is very intuitive and fast...and better results...
backfiring CIRCULAR PATCH should have better shape...LOBE
1 person likes this -
-
6 hours ago, eco32 said:What about dieletric as a microwave lens? It's probably the only chance to get more than 17dBi.
PES (Styrofoam) low density...1.075-1.1 Dielectric Constant (almost NO LOSSES)
-
-
On 29/1/2025 at 8:36 PM, Harry36 said:This is all well and good, but what does this have to do with me? Did I say that's not true? The option that was originally posted by the Admin in the topic is not a circularly polarized antenna. Without phase-shifting elements in this design it is impossible to obtain circular polarization. This is clear to me. in the initial version it is a regular mimo dipole. Perhaps the admin used a phase shift on the port when modeling. I have nothing to do with this.
i wasn't blaming anyone , just asking for YOUR opinion...
-
-
-
11 hours ago, papagayor said:Thank you very much for your time and your suggestion. Thinking for something "compact size" for feeding a satellite disk as reflector. Also I'm looking at the following post and thinking about making something similar as the attached file. Could you .....please..... check it??????
-
without the delay is only two dipoles one Vertical the other Horizontal (Crossfeeding High Isolation BAD) @Harry36
-
-
-
On 19/11/2023 at 6:12 PM, tomasbj said:Hi Guys, Why not one on top each other as gnss antennas. I mean, to make more compact this idea?
Each one has a 90 degrees orthogonal difference . Polarization is the same but Phase is 90 degrees off ...
-
-
-
-
-
3 hours ago, dumser2 said:Triple Feed Patch antenna
https://www.maartenbaert.be/quadcopters/antennas/triple-feed-patch-antenna/
could you post a .stl (cst2019 here)
-
different solver and different settings would give different F resonance . BUT dielectrics play the BIGGEST ROLE...try higher dielectric constant WHAT THICKNESSES ? METAL moves fr UP
ussually is 0.035 mm copper 1.53mm FR4
1 person likes this -
Only way I see to increase gain...is a reflector (Not omni anymore , but could add 3dbi) (multiplying elements cuts down on bandwidth and impedance changes)
-
-
-
USE POLYSTYRENE FOAM (STYROFOAM) Low density as a spacer ,is TRANSPARENT to RF and have NO LOSSES
1 person likes this -
in Antennas for mobile communications
Posted · Edited by clanon
Integrated LNA amp for Interference finding...All PET PC Boom tube...?
Catalogo-Antenne-di-Misura-e-Monitoraggio-Monitoring-Protel-023.pdf