Avantel softech ltd. Designs & manufactures repeaters, filters, combiners & amplifiers to enhance the capacity & coverage of wireless communication networks for use in gsm, cdma & 3g networks. Avantel`s band pass filters are available in the frequency upto 12ghz. Avantel develops band pass filters for gsm and cdma applications dcs etc, mobile / cellular communication frequency bands. The various band pass filter configurations used are :
1. high `q` cavity filters
2. combline
3. interdigital
4. helical
5. lumped