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Microwave Acronyms - G

Updated July 27, 2012

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G

gravity unit

Measurement of how hard a part will be accelerated.

Ga

available gain

Computed from S-parameters of a two-port network.

GaAs

gallium arsenide

III-IV compound that is a staple of the microwave IC world.

GaN

gallium nitride

An immature wide-bandgap III-V semiconductor technology that may offer a 10 dB increase in output power for the same size GaAs device.

GCPW grounded coplanar waveguide What you get when you add a ground plane under the substrate below CPW. Basically a mixed-mode microstrip/CPW transmission line. Also called conductor-backed coplanar waveguide (CBCPW).
GEO geostationary earth orbit  

GHz

gigahertz

1,000,000,000 cycles per second. Currently, the clock speed of a fairly inexpensive personal computer.

Gmax

maximum gain

The theoretical gain of an amplifier when it is conjugately matched.

Gopt

gamma optimum

One of three noise parameters for a device, refers to the generator impedance required for minimum noise figure. Used in noise figure calculations, along with RN and NFmin.

GL grating lobe See phased arrays.
GPIB general purpose interface bus  

GPO

Gilbert push-on

A trademarked family of RF connectors, now owned by Corning.

GPS

global positioning system, ground-plane spacing

What terrorists will use to position their first nuclear bomb, or a key dimension in stripline.

GR ground A potential of zero volts, usually with respect to the chassis.
GSG gorund signal ground The normal configuration for co-planar RF probes.

GSM

global system for mobile communications

Digital cell phone standard.

GSO geo-synchronous orbit  

 


 
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