Filtronic
2-20 GHz MMIC Limiter
Solid State
LML221
Phone:
(408) 988-1845
Internet:
http://www.FiltronicSolidState.com
Fax:
(408) 970-9950
Features
0.5 dB Insertion Loss
+15 dBm Leakage Power
4-6 Watts Burn-Out Power Typical
-15 dB Input/Output Return Loss Typical
2-20GHz Frequency Bandwidth
40 nS Pulse Recovery Time
DC Decoupled RF Input and Output
Chip Size : 1.62 mm x 0.74 mm (0.064" x 0.029")
Chip Thickness : 100
m
Pad Dimension : 100
m
2
Description
The Filtronic LML 221 Limiter is a MIN (Mott) diode limiter featuring low insertion loss, excellent pulse recovery time, and low spike leakage
energy. The diode structure features a very stable Pt / Ti / Au Schottky contact, with low resistance ohmic AuGe / Ni / Au ohmic contacts.
The MIN structure allows for a large diode area for improved maximum burn-out power levels while retaining wide-bandwidth performance.
The MIN diodes do not generate minority carriers, thereby offering superior pulse recovery and spike leakage performance as compared to
standard PIN limiters.
Electrical Specifications at T
A
=25
C
Limits
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Units
BW
Operating Bandwidth
2
20
GHz
S21
Insertion Loss
P
IN
= 0 dBm
0.35
1.0
dB
P
LK
Leakage Power
P
IN
10 dBm
13
15
dBm
P
MAX
Maximum Input Power (CW)
4
6
W
P
MAX
Maximum Input Power (Pulsed)
Duration
1sec,
10% Duty Cycle
4
6
W
RL
IN
Input Return Loss
P
IN
10 dBm
-10
-15
dB
RL
OUT
Output Return Loss
P
IN
10 dBm
-10
-15
dB
T
R
Recovery Time
P
IN
= 1W
10%-90% Recovery
40
50
nS
E
LK
Spike Leakage Energy
P
IN
= 1W
0.1
0.2
erg
Absolute Maximum Ratings
Symbol
Parameter/Conditions
Min.
Max.
Units
P
IN
RF Input Power
10
W
T
OP
Operating Temperature Range
-45
95
C
T
STG
Storage Temperature
-65
165
C
T
MAX
Max. Assembly Temp.
(1 min. max.)
300
C
Note
:
Specifications subject to change without notice.
DSS 018 WD
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