There are two non-Trivec antennas that I have used and really like.
One is made by RF Concepts and marketed exclusively by TSE Inc, has a quick draw holster, a solid 6db of gain and is very light. My wife can un-stow it, make comms and holster it in under 30 seconds. My wife has never been in the military, I just use her to test stuff.
Manpack Antenna.pdf
The other antenna is made by Syntonics, very light weight and incredibly rugged, not impossible to break, but much more durable than anything made by Trivec. This antenna includes a true reflector and provides 5 or 8db of gain, depending on if the gain extender is used.
Lightweight SATCOM Antenna 12-07.pdf
Unlike anything made by Trivec, both of these antennas are available from TSE in less than 30 days.