In this paper, the tunable wideband bandpass filter is designed, which is used in hybrid
frequency synthesizer of PLL+ DDS mixing in the outside of the feedback loop. The …

This paper presents a design plan for the frequency synthesizer base on DDS and PLL of
the digital receiver, the main hardware selection is shown. Finally through the system test …

AV band frequency synthesizer for local oscillator (LO) in an E-band superheterodyne
receivers is reported in this paper. The frequency synthesizer is developed based on a …

PLL is widely used in a variety of frequency synthesis systems. This paper presents a
wideband frequency synthesizer method using a passive frequency double and …

This paper designs an L-Band 1880-1980 MHz low spurious Multi-tuned frequency
synthesizer. The frequency source utilizes a DDS to directly stimulate a PLL, which makes a …

A frequency synthesizer based on SIP Technology with novel structure is presented in this
paper, which combines the advantages of miniaturization and easy to maintain. The system …

With the popularization of broadcasting networks, telecommunication networks, and Internet
triple play services, broadband requirements have been proposed for transceivers in …

The paper presents the design and implementation of a DDS-driven PLL frequency
synthesizer module using an offset mixing technique. The DDS, which is adopted as the …

A high performance frequency synthesis method based on PLL and DDS is introduced. The
synthesized signal has the characteristics of high frequency tuning resolution, ultra-low …

Recently, frequency synthesizers are being designed in two ways narrow-band loop or dual-
loop for wide-band to reduce the phase noise. However, dual-loop has the disadvantage of …