The latest GaN devices seem impressive, many rated at DC to 4GHz.
But the reality is whether impedance matching circuit can reach 50MHz to
3GHz bandwidth.
The problem is power efficiency and thermal dissipation.
Especially when you combine boost DC supply, you're not going to have a
heat sink fitti
I was thinking the user could just screw on coaxial low pass filters. For
instance, the VLF- line from Minicircuits are available from 80 MHz to 6
GHz, at about $22 each. An output filter bank would be doable, but it would
probably be 0.4 dB insertion loss per switch as S band, so it adds
Hi,
> 50 MHz - 3 GHz bandwidth
> Class AB
> 5 - 30 VDC supply (high efficiency, high frequency boost supply)
> 10 dBm drive
> 37 dBm Psat
> Robust to full mismatch (open/short)
> Logic level enable
> ALC with VSWR monitoring (serial, I2C, etc)
> Small (cigarette pack or smaller)
> Low cost
> Open
On Tue, Nov 26, 2013 at 9:37 PM, Louis Brown wrote:
> Given the availability of SDR hardware (USRPs, BladeRF, HackRF, etc) covering
> VHF through S/C bands, is there any interest in a wide band power amp to
> complement this hardware? GaN seems to be ubiquitous now, and there are
> medium powe
