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 directional couplers cover the frequency range of hf through 10 ghz with coupling coefficient varying from 10 db to 40 db. The following are its salient features:
1. directional couplers handle power levels up to 1 kw & are available in the frequency range of 2 mhz to 1 ghz.
2. directional couplers are 4 port devices
3. couplers separate and sample signals based on the direction of signal propagation.
4. directional couplers may be classified as narrow band and broad band couplers
Directional couplers find wide applications in rf / microwave networks, systems and in microwave measurements. They perform variety of signal processing functions such as:
