flippineck
- Sep 8, 2013
- 358
- Joined
- Sep 8, 2013
- Messages
- 358
I have a Sony Xperia phone. As far as I know it works on the 2100MHz band, and the antenna is housed in the bottom part of the phone, widthwise along the base.
There's no jack on the phone for an external antenna, but I'd like to try connecting one.
I've come across 'passive coupler' designs many times which seem to consist of a short whip type antenna intended to be mounted on the exterior of a vehicle, connected to a length of coax with I think, some form of induction coil at the other end which you're supposed to place in proximity to the phone. The idea being, that you get some form of inductive coupling between the external antenna and the phone's built-in one.
Does this approach work and if I was to try a homebrew attempt, what sort of coil etc arrangement would be best at the phone end?
Being almost completely clueless about V/UHF I would probably just wrap 20 turns of enamelled copper wire round the base of the phone and solder the ends to the coax and see what happened.. but before I do, any suggestions?
Or are these passive patch type antenna kits all a load of marketing hot air and no theory
There's no jack on the phone for an external antenna, but I'd like to try connecting one.
I've come across 'passive coupler' designs many times which seem to consist of a short whip type antenna intended to be mounted on the exterior of a vehicle, connected to a length of coax with I think, some form of induction coil at the other end which you're supposed to place in proximity to the phone. The idea being, that you get some form of inductive coupling between the external antenna and the phone's built-in one.
Does this approach work and if I was to try a homebrew attempt, what sort of coil etc arrangement would be best at the phone end?
Being almost completely clueless about V/UHF I would probably just wrap 20 turns of enamelled copper wire round the base of the phone and solder the ends to the coax and see what happened.. but before I do, any suggestions?
Or are these passive patch type antenna kits all a load of marketing hot air and no theory