Adjustable Matching Transformer Exist ??
Adjustable Matching Transformer Exist ??
Is there such a thing as a variable matching transformer. Just hook it up and adjust for best signal? Is an Antenna Tuner the same thing?
-
- Site Admin
- Posts: 2816
- Joined: Mon Nov 19, 2012 11:54 pm
Re: Adjustable Matching Transformer Exist ??
Yeah that's an antenna tuner.
But remember that by matching impedance you're only affecting SWR. Things like radiation patterns and antenna gain are also dependent on proper antenna sizing.
But remember that by matching impedance you're only affecting SWR. Things like radiation patterns and antenna gain are also dependent on proper antenna sizing.
Re: Adjustable Matching Transformer Exist ??
Yes impedance matching circuit/transformer exist.
The problem is you have to place such a device directly between the antenna and the transmission line e.g. coax cable to work. Then you have to tune it to the frequency you want to operate on, and again after you change the frequency.
This requires some means of remotely tuning the components uses in such a impedance matching circuit/transformer
The problem is you have to place such a device directly between the antenna and the transmission line e.g. coax cable to work. Then you have to tune it to the frequency you want to operate on, and again after you change the frequency.
This requires some means of remotely tuning the components uses in such a impedance matching circuit/transformer
-
- Posts: 76
- Joined: Thu Jan 25, 2018 10:48 pm
Re: Adjustable Matching Transformer Exist ??
antenna tuner also can be used as pre-selector tunable bandbass filterrtlsdrblog wrote: ↑Fri Aug 23, 2019 12:57 amBut remember that by matching impedance you're only affecting SWR.
Re: Adjustable Matching Transformer Exist ??
It depends on the design of the matching network if it can be used as pre-selector tunable bandbass filter, e.g a Pi-design is a Low pass filter.antenna tuner also can be used as pre-selector tunable bandbass filter