The potential of diamond and SiC electronic devices for microwave and millimeter-wave power applications
The potential of diamond and SiC electronic devices for microwave and millimeter-wave power applications
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DOI:
10.1109/5.90128
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发表时间:
1991-05
期刊:
影响因子:
--
通讯作者:
R. Trew;J.B. Yan;P. M. Mock
中科院分区:
文献类型:
--
作者:
R. Trew;J.B. Yan;P. M. Mock
The potential of SiC and diamond for producing microwave and millimeter-wave electronic devices is reviewed. It is shown that both of these materials possess characteristics that may permit RF electronic devices with performance similar to or greater than what is available from devices fabricated from the commonly used semiconductors, Si, GaAs, and InP. Theoretical calculations of the RF performance potential of several candidate high-frequency device structures are presented: the metal semiconductor field-effect transistor (MESFET), the impact avalanche transit-time (IMPATT) diode, and the bipolar junction transistor (BJT). Diamond MESFETs are capable of producing over 200 W of X-band power as compared to about 8 W for GaAs MESFETs. Devices fabricated from SiC should perform between these limits. Diamond and SiC IMPATT diodes also are capable of producing improved RF power compared to Si, GaAs, and InP devices at microwave frequencies. RF performance degrades with frequency and only marginal improvements are indicated at millimeter-wave frequencies. Bipolar transistors fabricated from wide bandgap material probably offer improved RF performance only at UHF and low microwave frequencies. >