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. Each duplexer from avantel is housed in either a copper or aluminium housing with either helical or tem coaxial resonators. Salient features of duplex filters are as follows:
1. avantel duplexer use compact high q helical resonant cavities for low frequency bands.
2. coupling is accomplished through shielded coaxial transmission lines
3. filter size can be optimized for high performance applications.
4. duplexing is accomplished through a simple tee-junction.
5. low insertion & high return loss
6. sharp rejection
7. high isolation
8. low/high power applications
9. economical and custom built designs
10. very stable performance over entire specified temperature range
11. compact and rugged construction
