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您的检索式：作者名="Yaoling Tian"
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| 1 | High Power 170 GHz Frequency Doubler Based on Ga As Schottky Diodes显示文摘The research on high power 170 GHz frequency doubler based on the Ga As Schottky diodes is proposed in this paper. This basic doubler cell is developed with a 50-μm-thick, 600-μm-wide, and 2-mm-long Al N substrate with high thermal conductivity to reduce the thermal effect. Besides, power combined frequency doubler has been fabricated to improve the power capacity by a factor of two. Great agreement has been achieved between the simulated results based on electrothermal model and measured performances. At room temperature, the 3 d B bandwidth of the single doubler based on Ga As Schottky diodes is 11.8% over the frequency range from 160 to 180 GHz with pumping power of 150 to330 m W. And the peak efficiency of the doubler is measured to be 33.1%, while the maximum output power is101.7 m W at 174.08 GHz. As for power combined circuit,the best efficiency is 30.1% with a related output power of204.6 m W. The proposed methods of developing high power multipliers can be applied in higher frequency band in the future. | TIAN Yaoling HE Yue HUANG Kun JIANG Jun LIN Changxing ZHANG Jian | 2022 | Chinese Journal of Electronics2022，31，3： | 1 |
| 2 | A Broadband 630-720 GHz Schottky Based Sub-Harmonic Mixer Using Intrinsic Resonances of Hammer-Head Filter显示文摘An room temperature low noise anti-parallel Schottky diode based 630-720 GHz sub-harmonic mixer(SHM) is designed, built and measured. Intrinsic resonances in lowpass hammer-head filter have been adopted to prevent the LO and RF power leak from the IF channel, while greatly minimizing the transmission line size. The mixer consists of 15 um quartz terahertz circuit and 127 um Al2 O3 IF transformer circuit. An improved lumped element equivalent noise model of SBDs guarantees the accuracy of simulation. The measurement indicates that with local oscillating(LO)signal of 2-8 mW, the lowest double sideband(DSB) conversion loss is 8.2 dB at 645 GHz,and the best DSB noise temperature is 2800 K at 657 GHz. The 3 dB bandwidth of conversion loss is 75 GHz from 638 to 715 GHz. The work IF frequency band is above 20 GHz ranging from 1 to 20 GHz with-10 dB return loss. | Yue He Yaoling Tian Li Miao Jun Jiang XianJin Deng | 2019 | China Communications2019，16，2： | 0 |
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