What are Digital RF Phase Shifters?
Digital RF Phase Shifters are devices that are used to change the phase of an RF signal digitally while keeping its amplitude constant. The phase shift of digital phase shifters is controlled by using digital control logic. The number of bits can decide the LSB of the minimum phase shift increment that can be applied for a specific digital phase shifter. These phase shifters are used in EW receivers, weather & military radar, satellite communications, beamforming modules, phase cancellation and electronic warfare applications. When looking for a Digital Phase Shifter the following parameters are important:
Frequency: This is the frequency range in which the digital phase shifter provides a phase shift.
Phase Shift: The total phase shift range of the phase shifter will be specified here. The unit of this is degrees.
Number of Bits: The total number of bits that can be used to control the phase shift. The larger the number of bits the better the resolution of the phase shifter i.e the smaller each phase incriment.
LSB: The least significant bit of the phase shifter will be the minimum phase shift step of the digital phase shifter.
everything RF lists digital phase shifters from the leading manufacturers. Use the parametric search tools to narrow down on products based on your requirement. Once you find parts that meet your specification, download the data sheet, compare products and request quotations. Inquiries sent via everything RF are directed to the manufacturers who get back to you with a quote or information.
