W Band Broadband Frequency Multiplier And Q Band Broadband Frequency Multiplier

The article mainly describes the property of millimeter wave and millimeter wave multiplier's nowadays development at the first chapter. It also analyses several common multiplying methods associated with the subject's requirement and the realistic conditions according to which a proposal is confirmed that W-band tripling of one pair of parallel connectable diode and Q-band quadrupling of two doubler of MMIC. Electrical circuit's design is accomplished by simulations on software and debugging in experiments. There are two parts included. The first part is W-band broadband tripler design. It's about of Ka-band waveguide-to-microstrip transition, prepositive-amplifier designed by AMMC-5040, the Ka-band lowpass filter and matching circuit design, composed of tripler designed by detector diode of HSCH-9161 in W-band maximum output power about -20dBm is obtained. The Ka-band waveguide-to-microstrip transition is E-plane probe form. AMMC-5040 is prepositive-amplifier, it's driver circuit's area is very small. The radial line lowpass filter, which passing the fundamental signal (25-36.7GHz), is used to prevent third harmonics components (75-110GHz) from returning to input circuit. The core component is the anti-parallel Schottky-detector diode pairs. Output signal is transited by reduced-high WR-10 waveguide; The Second part is called Q-band broadband quadrupler design. There are three plans, output power higher than 10dBm is obtained at most frequency dot of Q-band, and harmonic components-reject is greater than 20dBc. On the first plan, the quadrupler was made up of UMS's CHX-2089 MMIC multiplier and doubler by coplanar waveguide to slotline balun and DMK-2790. The driver circuit is very small. On the second and third plan, the quadrupler was made up of UMS's CHX-2089 and Minix's XX-1000 MMIC multiplier. The driver circuit's area still is very small. For two MMIC doublers, the driver circuit has only one input port of+12V.The W-band tripler and Q-band quadrupler can be used extend the signal from domestic signal resource within 40GHz for the demand of user.