The PLDRO (Phase Locked Dielectric Resonator Oscillator) provides the ultra-low phase noise and an excellent frequency stability when it is phase-locked to a clean and stable crystal reference signal. The PLDRO provides ideal signal for commercial and military systems that require ultra-low phase noise, low spurious, and high frequency stability.

Our PLDROs are available in three series: Single Loop PLDRO, Dual Loop PLDRO, and Fractional-N PLDRO. The Single Loop PLDRO is a phase locked dielectric resonator oscillator whose output frequency is generated by a single phase locked loop. Our Single Loop PLDRO series consists of various types of PLDROs.



●  Ultra low phase noise
●  Low spurious
●  Phase-locked alarm
●  Wide supply voltage
●  Low current consumption
●  Compact housing
●  Rugged construction



●  Multi-channel Output
●  17 dBm (typ.) Output Power
●  Supply Voltage: 24 VDC or 28 VDC
●  Extended operating temperature: -20 ℃ to +70 ℃ or -40 ℃ to +85 ℃
●  Field replaceable SMA-jack
●  Customized outlines
●  Laser marking



●  Radar systems
●  VSAT/Satellite communication systems
●  Test equipment
●  Microwave transmitters & receivers
●  Cable TV links (CATV)
●  Local area networks (LAN)
●  Missile guidance


Outline Drawings

Single Bed Housing

Hermetically Sealed Housing

Dual Bed Housing

Dual Channel Housing

Triple Channel Housing


  Single Loop PLDRO-rev5.0