This LC Diplexer is ideal for receiver-transmitter systems in the GSM, ISM, DCS, and PCS frequency bands. Port 1 – Port 3 operates in the 823 to 961 MHz frequency range, and Port 2 - Port 3 operates in the 1709 to 2171 MHz frequency range.
This diplexer uses TE Mode waveguide puck resonators to achieve narrowband filters of less than 0.25% bandwidth yet still provide a pass band loss on the order of < 1.5 dB. In addition to the low loss provided by the high Q ceramic resonators, cross coupling is used to achieve very deep rejection of 75 dBc at a 4:1 shape factor. This device also incorporates a sampling coupler and is available in both diplexer and double band pass configurations in frequency ranges of 2250 MHz to 2800 MHz...
