cmosbjt
Full Member level 5
Requirement:
1. MESFET switches (note: NOT CMOS)
2. Steps 0.5, 1, 2, 4, 8, 16 dB
3. Small Thru insertion loss < 1.6dB (up to 2GHz) < 2 dB (up to 3GHz)
4. Bandwidth, 700MHz ~ 3GHz or even higher
5. GOOD step flatness < +/-5%
6. Fast switching time (90% settling) < 1uS
I believe this is a very challenge design, I am looking for a reference design, paper, or patent...
Any input is welcome.
Thanks.
1. MESFET switches (note: NOT CMOS)
2. Steps 0.5, 1, 2, 4, 8, 16 dB
3. Small Thru insertion loss < 1.6dB (up to 2GHz) < 2 dB (up to 3GHz)
4. Bandwidth, 700MHz ~ 3GHz or even higher
5. GOOD step flatness < +/-5%
6. Fast switching time (90% settling) < 1uS
I believe this is a very challenge design, I am looking for a reference design, paper, or patent...
Any input is welcome.
Thanks.