Projects:

• 10MHz to 26.5GHz Scalar Network Analyzer -- Microwave Detector, Ultra low noise amplifier, Z-80 assembly code
• 2GHz to 20 GHz Synthesized Signal Generator -- YIG-tuned doubler, Drivers, Z-80 assembly code
• Fast-Switching (~1nsec) Direct Synthesizer at X-band -- Microwave design, interface design, test equipment design
• Military Synthesizer (classified) -- Subsystem design, Microwave design, Automated spur-hunting test equipment (C-code under Windows)
• Low-noise, ultra-inexpensive MMDS LO Synthesizer -- System design, Microwave design
• PCS Repeater -- Microwave design, PLL design, PA design, PIC microcontroller design & programming (LCD, keyboard, and radio interface)
• Toy Design: "V-Link" 915MHz ISM Band Audio & Data -- System design, Microwave Design, Antenna Design, PLL design, interface, Test fixtures
• 1GHz to 15GHz Low-Noise YIG-based Synthesizer -- System Architecture, Microwave Design, PLL design, Drivers
  • Also: extensive test and calibration software (C-code under Windows)

• MDS Band Data Link
• Automatic Tuner for Dielectric Resonator Filter (Cellular Application)
• 8 to 20 GHz Coarse-step Synthesizer -- for phased array system requiring high correleation

Components / Subtasks:

• PIC Controller for programming PLL chip
• Sampling Mixer 1GHz to 26GHz, IF to 350MHz
• Broadband Amplifier: 1 to 20GHz, +12 dBm output
• Active FET Multipliers to 22GHz
• Programmable Clock Generator
• Broadband limiter
• Single-ended and Balanced Diode Detectors: 10MHz to 40GHz
• PIN Switches & Modulators & Attenuators
• VCXOs
• Single and Double-Balanced Mixers to 20GHz
• Varactor-Tuned Filters
• Differential Bipolar YIG Driver
• Discriminators
• Ceramic Resonator Oscillators
• DROs
• Low-Noise Voltage and Current Regulators
• VCOs -- single ended and push-push
• Baluns & Power Splitters (resistive and Wilkinson)
• Step Motor Drivers