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Microwave Acronyms - L

LAN local area network  
LCC leadless chip carrier A type of package.
LCP liquid crystal polymer A type of low-cost soft substrate.
LEC liquid-encapsulated Czochralski The most popular method of growing single-crystal GaAs material.
LHCP left-hand circularly polarized  
LDMOS laterally diffused metal oxide semiconductor Power amp technology, pioneered by Freescale.
LMDS local multipoint distribution system  
LNA low noise amplifier A low noise amplifier has good noise figure, but limited power handling. Used in a receiver.
LNB low noise block Downconverter module consisting of a low noise amplifier and a mixer. Often used to describe the first section of a receiver.
LO local oscillator The signal used to drive a mixer to change the carrier frequency. Pronounced "ell-oh", if you say "low" people will immediately think you are a buyer and not an engineer.
LORAN long range navigation Actually, this is more like a portmanteau than an acronym. Invented by Alfred Lee Loomis.
LOS line-of-sight  
LPF low-pass filter A two-port network that rejects signals above a certain frequency band.
LRL line-reflect-line A type of network measurement calibration.
LRM line-reflect-match A type of network measurement calibration.
LS large signal Range in which stuff acts non-linear.
LSB least significant bit In a three-bit phase shifter, the 45 degree bit.
LSG large signal gain The gain characteristic of a nonlinear device near its saturation point.
LSM low side mixing Refers to the condition that the LO frequency is below the RF frequency.
LTCC low-temperature co-fired ceramic A versatile but expensive multi-layer ceramic substrate technology.
LTE Long term evolution A wireless communication standard.
LVS layout versus schematic A software means of checking that your MMIC circuit will work on the first iteration.
Author: Unknown Editor
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