How do through glass antennas work

Through glass antenna. Thread starter hawk51 Start date Apr 15, Status Not open for further replies. Has anyone got a lot of experience with these? Does window heater and factory tinting hinder the quality of reception? Joined Aug 13, Messages 1, Location Uranus.

I have one on my car, and it works good, to be honest I dont think the whip on it does a damn thing, I took the whip off once when I was going through the car wash, and didn't notice any difference in reception. There are a few do's and don'ts of on glass antennas. They don't work on glass that has metal tint built into it. Some of the auto glass actually uses metalic particles to cause the tinting. On this type of glass, no on glass antenna will work at any frequency band.

It acts as an RF shield also. They might even use the same coils but at different frequencies. Now you have a problem then. You should make check this foto for example: robkalmeijer. As you can see different length for different Frequencies. I won't lie to you I have no idea if it would work if you modify the antena you have, but that could be a good experiment.

Check in google "antena length calculate". You will see a few useful formulas. Hope this helps friend. Show 1 more comment. Active Oldest Votes.

Andy aka Andy aka 1. Don't be shy on this! We're all here to learn something. It's a bit out of my league at this stage, but I'm wrapping my head around it.. So anyway, is it normal to have a capacitor, or pair of inductors immediately before and in series with an antenna? Or is it simply a means of traversing the glass? It seems like the kind of thing that would have a significant affect on the behaviour of the main circuit.

For wifi frequencies I've never seen a pair of coupled inductors and I suspect that is because the frequency is too high to get effective magnetic coupling like this. Add a comment.

Bimpelrekkie Bimpelrekkie However, if the SWR is acceptable but the performance is less than what you require or expect, you need a better antenna. The "on-glass" cellular look-a-like antennas are, in our opinion, the worst performing antenna you can install on your vehicle. Uninformed users are easily led to believe that any antenna will fill their needs.

So, they choose one that doesn't require extensive mounting considerations and will look "cool" on their vehicle. The biggest misleading factor is the "they work okay for cellular phones so they must be okay for CB" idea.

Nothing could be further from the truth, and for good reason. Glass mount antennas are typically used in vehicles on single pain glass. The consist of 2 pieces, the antenna base and whip which is mounted outside the vehicle and the cable and base mounted to the glass inside the vehicle. The signal is passed through the glass the antenna is attached too. Glass mount antennas are not for building windows are these are typically double pane which will interfere with the signal passing from the base outside to the inside base.