The waveguide duplexer is used to design the transmitting and receiving channels for the equipment, which can guarantee the loss of transmitting and receiving frequency, and also can ensure the isolation between transmitting and receiving channels.
Frequently asked questions about waveguide duplexers:
(1) Definition of the waveguide duplexer
It is a three-port network that splits the input signal from a common port into two according to frequency and ensures that the receiving and transmitting ends can work normally at the same time. The simplest type of multiplexer is a duplexer, which splits a signal from a common port into many different paths.
(2) The role of the waveguide duplexer
A duplexer is a device that separates or combines high and low frequencies. Each duplexer has a low-pass cutoff frequency below which the signal is routed from the common port to the low-pass port and a high-pass cutoff frequency above which the signal is routed from the common port to the high-pass port. It is a three-port passive (RF) filter element that shares an antenna between two different frequency bands. This technology allows transmitters operating on different frequencies to use the same antenna, and each frequency band can achieve transmission and/or receiving.
Dolph has developed a comprehensive family of waveguide orthogonal mode converters covering C, X, Ku and Ka bands. These devices offer very high performance at a very competitive price. A quadrature mode transducer splits a signal applied to a circular waveguide input port into its two linear quadrature components at the output port of a rectangular waveguide between polarizations. Instead, two orthogonal linearly polarized signals are combined to produce an output at the circular waveguide port. Depending on the relative phase and magnitude of the two quadrature input signals, the resulting polarization can be linear, circular, or elliptical.
Dolph Microwave provides a series of high-performance standard rectangular waveguide filter products, which are divided into low-pass, high-pass, band-pass and band-stop filters. The product frequency range covers 3.2 to 40GHz, and the typical standing wave within 10% of the waveguide bandwidth is less than 1.20.
Dolph Microwave manufactures high quality waveguide phase shifters in a hybrid design, making them ideal for achieving high power and low loss. The phase shift is approximately linear with turntable rotation, but independent of frequency. It can change the phase of the signal in the waveguide transmission system within the range of 0° to 360°.
Dolph has developed a comprehensive range of antenna feeds covering C, X, Ku and Ka bands. The devices in these assemblies are precision machined from aluminum or copper to provide high performance at a very competitive price. Each device is tuned to meet strict electrical specifications. Additionally, the entire feed is assembled and tuned as a unit to provide better performance than individually assembled components that are not tuned as a unit.