Multipliers / Comb Generators
REMEC D&S multiplier designs are tailored for the application:
- SRD multipliers are used for high multiplication ratios
- Schottky diode multipliers are used for narrow or broadband, low-phase noise applications
- Microwave bipolar transistors are used for high-efficiency, low-order multipliers below 10 GHz
- GaAs FETs are used for low-order multipliers above 10 GHz.
Typical Block Diagram
Features
- Schottky diode - broadband multipliers and low-phase noise applications
- Step recover diode - high-order multiplication and comb generators
- Transistor - low-order multiplication, high-efficiency
Example Part
Multiplier Assembly
REMEC D&S's dual-output multiplier satisfies the needs of state-of-the-art low-noise radar systems. Lumped element inter-stage bandpass filters provide high spurious rejection. This design utilizes REMEC D&S's low-cost step recovery diode (SRD) multiplier technology. A custom hybrid voltage regulator prevents phase noise degradation due to supply noise.
Typical Block Diagram
Typical Performance
- 4 GHz Input, 12 and 16 GHz output SRD comb generator
- 1 to 5 dBm output power
- -150 dBc/Hz phase noise at 10kHz offset
- +10VDC, 380mA
- 2.5" x 1.6" x 0.27" package size
Exisiting Parts
Parts listed in the chart provide an example of REMEC D&S's multiplier capability, demonstrating performance from 0.03 to 18 GHz. Outlines are given as PDF links. Parameters are over temperature ranges of -54°C to +95°C.
