610193-2

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The 610193-2 is a wide band duplexer operating in the frequency range of 890 to 960 MHz with a low loss of - 1.2 dB. It uses a common antenna to transmit and receive signals simultaneously. The proposed design has two notch filters at the front end, which allows the duplexer to reject the reflected signals from the antenna port and reduce the cross-talk between the transmitter and receiver ports. In order to achieve the desired rejection, the notch filter should have a good port isolation and an ideal steep rejection slope in the stop band. The alternative to this design is using two separate duplexers to separate the signal paths of the transmitter and receiver.

The application field of the 610193-2 duplexer is mainly in cellular mobile communication systems. This duplexer is used in base station antenna systems, where a common bi-directional antenna is used to both transmit and receive data from the cellular tower. It is also used in satellite radio and TV broadcasting systems that use bi-directional antennas for both transmission and reception. Additionally, this duplexer can also be used in commercial wireless data systems such as Wi-Fi and WiMAX.

The working principle of the 610193-2 duplexer is based on the combining of two separate notch filters. The first notch filter rejects the frequencies that are reflected by the antenna port, while the second one rejects the transmit signals from the antenna port. The duplexer has two low pass filters between the receive and transmit antenna ports, which provide a better port isolation and a steep rejection slope in the stop band. The antenna signal is divided into two paths, one for the transmitter port and another for the receiver port. The signals from the antenna are separated by the low pass filters and are then routed to the appropriate ports.

The 610193-2 duplexer offers a wide range of use in cellular base stations and commercial wireless data systems. Its low loss performance and excellent port isolation makes it an ideal solution for separating the transmit and receive signal paths. It also provides an economical alternative to separate duplexers, since it requires only a single antenna for both transmitting and receiving signals. This duplexer also offers a simple and efficient design, as only two notch filters are required to provide an ideal steep rejection slope in the stop band.

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