Microwave Vendors

EMF Systems, Chris' favorite source of oscillators
Synergy, more oscillators
A good (technical) summary of what I do with microwaves
A far more comprehensive list but alphabetical by company name
A summary of RF connector types, with links to manufacturers and distributors
Richardson Electronics: distributor of many manufacturers
Component Distributers, Inc.: another distributor
Hewlett-Packard
Newark distributors
Analog Devices
Tektronics
Scitec: Lock-in amplifier products and links to theory/applications; IR stuff, too.
Meret: parent company of Sciteq, maker of the 1-230MHz chirper.
G.T. Microwave: phase shifters and similar control
Michael Perrott: PLL design tools
the Electronic Bookshelf: lots of good stuff here!
Electronic Design Magazine
Endwave: mini YIGs, etc.
Teledyne Microwave: YIGs, etc.
Advanced Control Components, Inc. Makers of TMRS-3 detectors.
Herotek: detectors, limiters, PIN diode switches
M/A-COM
Spacek: millimeter wave stuff, incl. W-band amp
Farran: millimeter wave stuff, high noise figures
Terabeam: millimeter wave stuff
Ute: good circulators and isolators
Murata: among other things, tiny isolators
AVX: tiny directional couplers
Temex: limited selection of flight HW, incl. coax and wg isolators, micro and millimeter wave
Renaisance: isolators, circulators, coax em switches; in stock are cheap!
JQL: circulators, isolators, dividers and couplers, as well as transformers
Dorado: wg to coax adaptors, many sizes/connectors, $125 each; 37GHz wg isolator for $50; other passive products (some, but not much below X-band)
Cernex, Inc.: microwave and mmw stuff; lots waveguide
QuinStar: millimeter wave stuff (is this the old Alpha Industries?)
Amplifier Research: cheapo power amps?
Inmet: mostly passive components
Integrated Microwave Corporation (aka IMC): filter supplier for STAR-Light
K&L Microwave: filters
Lorch: filters
TTE: filters
Anatech: filters
Maury: noise components, among other things
Micro Lambda: connectors, adaptors, custom assembly
Marki Microwave: esp. mixers
Microwave Filter (and RAM)
Microwave Development Corporation (MDC): filters
Millitech: millimeterwave
Mini-Circuits: cheap microwave
Locus Microwave: low noise amps
MITEQ: good amps
JCA Technology: amps
RF Micro Devices: amps+
Noise Com: noise diodes
Noisewave: noise diodes
Micronetics: noise diodes
DowKey Microwave: microwave switches
Magfusion: a little startup working on latching MEMS switches
Peregrine: CMOS microwave parts (esp. low IL switches)
TriQuint: can make what you want
H. Rollet & Co.: waveguide
Precision Tube: good coax, but lousy website
Times Microwave: adverts SiO_2 phase stable coax
R and F: absorber
Emerson and Cuming: absorber
Microsorb: absorber? or cappuchino?
Anaren: power dividers
Arra: power dividers
Microwave Communications Laboratories: power dividers, circulators, couplers, switches
Meca Electronics: power dividers
KDI Triangle: power dividers
AT Microwave: power dividers
Seavey Antenna Engineering: good, inexpensive custom antenna house
Hittite
Channel Microwave: Juno MCS supplier of many parts
EMS Technologies: ferrite products including ferrite switches
Ferrite Domen: Russian company making ferrite products including ferrite switches
EMC Technology: thermopads, among other things
ims: another manufacturer of temperature compensating attenuators
Coilcraft: inductor manufacturer
Florida RF Labs: has crossover chips
Rogers: Duroid substrates, etc.
Ramsey Electronics: very inexpensive antennas

Still Useful, but not Microwave

Thinergy embeddable rechargeable batteries, suited for energy harvesting.
Acopian power supplies
TECA makes thermoelectric coolers that we use in radiometers
Cooligy makes liquid cooling systems for individual chips (unexplored)
Micropac makes the resistor-programmed ceramic heaters used on the Bistatic Facility
Aero makes high quality non-RF connectors
gEDA: open source PCB design SW for *nix.
Express PCB: they mean the name, and they're inexpensive, too, if you only need 2 layers. Use their free proprietary software from start to finish.
Sierra Proto Express PCB: really inexpensive and less restrictive than ExpressPCB, but you have to have your own layout software.
FLIR: infrared cameras
Melexis: infrared devices. MLX90614 looks interesting; MLX90601 has appeared in some TMRS-3 systems.
Special Hermetic Products: hermetic connectors
MIL-Specs: RF connectors are in MIL-STD-348
Integrated Publishing: more mil-specs
CRC Handbook of Chemistry and Physics