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MICROWAVE CORPORATION
GaAs MMIC SMT FREQUENCY DOUBLER 1 - 2 GHz INPUT
HMC157C8
FEBRUARY 2001
Features
CONVERSION LOSS: 17 dB
Fo, 3Fo, 4Fo ISOLATION: > 35 dB
INPUT DRIVE LEVEL: 10 to 20 dBm
3
MULTIPLIERS
SMT
V01.0700
General Description
The HMC157C8 is a miniature frequency
doubler in a non-hermetic ceramic surface
mount package. Suppression of undesired
fundamental and higher order harmonics is
32 to 60 dB with respect to input signal level
and 15 to 43 dB with respect to the desired
output signal level. The doubler uses the
same diode/balun technology used in Hittite
MMIC mixers, features small size and requires no DC bias.
Guaranteed Perf ormance, 50 Ohm system -55 to +85 deg C
Typical Performance vs.Drive Level
10 15 20 dBm
Input Frequency Range 1.5 - 2.0 1.0 - 2.0 1.0 - 2.0 GHz
Output Frequency Range 3.0 - 4.0 2.0 - 4.0 2.0 - 4.0 GHz
Conversion Loss <20 <17 <18 dB
Performance for Input Signals in the 1.0 - 2.0 GHz Band (+15dBm Drive)
Min. Typ. Max.
Fo Isolation (with respect to input level) 42 50 dB
3Fo Isolation (with respect to input level) 40 50 dB
4Fo Isolation (with respect to input level) 30 35 dB
12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Web Site: www.hittite.com
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MICROWAVE CORPORATION
GaAs MMIC SMT FREQUENCY DOUBLER 1 - 2 GHz INPUT
HMC157C8
V01.0700
Conversion Loss vs. Drive Level
0
-10
-20
-30
-40
CONVERSION GAIN(dB)
-50
2 2.5 3 3.5 4 4.5 5
Input=+10dBm
Input=+15dBm
Input=+20dBm
OUTPUT FREQUENCY (GHz)
Input Return Loss vs. Drive level
FEBRUARY 2001
Isolation @ +15 dBm Drive Level *
0
-10
-20
-30
-40
-50
-60
ISOLATION (dB)
-70
-80
-90
-100
12345678910
Fo
3Fo
4Fo
FREQUENCY (GHz)
* With respect to input level
Output Return Loss vs. Drive Level
3
MULTIPLIERS
SMT
0
-5
-10
-15
-20
INPUT RETURN LOSS (dB)
-25
-30
1234567
Input=+10dBm
Input=+15dBm
Input=+20dBm
INPUT FREQUENCY (GHz)
0
-2
-4
-6
-8
-10
-12
-14
-16
OUTPUT RETURN LOSS (dB)
-18
-20
1234567
Input=+10dBm
Input=+15dBm
Input=+20dBm
FREQUENCY (GHz)
12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Web Site: www.hittite.com
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