Research on the practical design method of 225 GHz tripler

According to the level of domestic processing technology at present, the circuit structure of anti-parallel diodes with self-bias was proposed. With this structure, not only the difficult problem of processing bias circuit can be solved, but also the odd-order frequency multiplication can be realized efficiently. At the meantime, co-simulation approach was used to simulate the electrical characteristic of the tripler by software HESS and ADS, including the impact of the parastics. After designing, both the machining and electrical installation are accomplished. The highest measured output power is 3. 1 mW at 221 GHz and the output power is more than 2 mW at frequencies of the range 219 similar to 227 GHz. These results can provide important reference for future design of high efficiency submillimeter frequency multiplier.