| LAN |
local
area network |
|
| LCC |
leadless
chip carrier |
type
of package. |
| LCP |
liquid
crystal polymer |
A new
type of low-cost 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 "el-low",
if you say "low" people will immediately think you
are a buyer and not an engineer.
|
| 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.
|
| LVS |
layout
versus schematic |
A software
means of checking that your MMIC circuit will work on the first
iteration. |
