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- Title
A HIGH ATTENUATION ELECTROMAGNETIC PULSE PROTECTOR WITH GDT, MOV AND PARALLEL COUPLED BPF ON HIGH THERMAL CONDUCTIVITY SUBSTRATES.
- Authors
Jeng, M.-J.; Das, A.; Chang, L.-B.; Lin, C.-C.; Ferng, Y.-C.; Shih, C.-F.; Liao, S.-Y.; Chou, S.-T.; Liu, J.-C.; Chow, L.
- Abstract
An alternative approach for robust electromagnetic pulse (EMP) protection circuit was proposed by using a parallel coupled band-pass filter (BPF) with high thermal conductivity alumina nitride (AlN) substrate coupled with a traditional gas discharge tube (GDT) and fast response metal oxide varistor (MOV). This proposed configuration can suppress slow as well as fast voltage surges. The fabricated BPF with a center frequency of 2.5 GHz on the high thermal conductive (180 ~ 200W/m⋅K) AlN substrate could efficiently suppress high power over voltage surge. Through the purposed cascade protection configuration, it is observed that 6 kV electrostatic discharge (ESD) pulse (5 ns/50 ns) and 4 kV lightning surge pulse (1 µs/50 µs) were attenuated to 511 V and 396 V, respectively, and that is capable to be applied to an EMP protection circuit in the front end of a linear amplifier applications.
- Subjects
ELECTROMAGNETIC pulses; BANDPASS filters; THERMAL conductivity; SUBSTRATES (Materials science); GAS tubes; VARISTORS; ELECTRICAL surge protection
- Publication
Progress in Electromagnetics Research Letters, 2012, Vol 33, p73
- ISSN
1937-6480
- Publication type
Article
- DOI
10.2528/pierl12041804