Page 1
MICROWAVE CORPORATION
GaAs MMIC FREQUENCY DOUBLER 4 - 8 GHz INPUT
FEBRUARY 2001
HMC204
3
MULTIPLIERS
DIE
Features
CONVERSION LOSS: 15 to to 20 dB
Fo, 3Fo, 4Fo ISOLATION: > 38 to 50 dB
PASSIVE: NO BIAS REQ'D
General Description
The HMC204 is a passive miniature frequency doubler in a MMIC die. Suppression
of undesired fundamental and higher order
harmonics is 40 to 60 dB with respect to
input signal level and 24 to 42 dB with
respect to the output level. The doubler
utilizes the same GaAs Schottky diode/balun
technology found in Hittite MMIC mixers. It
features small size no DC bias, and no
measurable additive phase noise onto the
multiplied signal. Applications include commercial microwave radios and VSAT, as
well as military ECM and communication
systems.
Guaranteed Perf ormance, 50 Ohm system -55 to +85 deg C
Typical Performance vs.Drive Level
10 12 15 dBm
Input Frequency Range 5.5 - 7.5 5.0 - 8.0 4.0 - 8.0 GHz
Output Frequency Range 11.0 -15.0 10.0 - 16.0 8.0 - 16.0 GHz
Conversion Loss <17 <17 <20 dB
Performance for Input Signals in the 4.0 - 8.0 GHz Band (+15dBm Drive)
Min. Typ. Max.
Fo Isolation (with respect to i nput level) 41 45 dB
3Fo Isolation (with respect to i np ut level) 42 46 dB
4Fo Isolation (with respect to input level) 35 38 dB
12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Web Site: www.hittite.com
3 - 38
Page 2
MICROWAVE CORPORATION
HMC204 FREQUENCY DOUBLER 4 - 8 GHz INPUT
HMC204
FEBRUARY 2001
Conversion Loss vs. Temperature
@ +15 dBm Drive Level
0
-5
-10
-15
-20
-25
-30
CONVERSION LOSS (dB)
-35
-40
3456789
-55 C
+25 C
+85 C
INPUT FREQUENCY (GHz)
Input Return Loss vs. Drive level
0
Isolation @ +15 dBm Drive Level *
0
-10
-20
-30
-40
-50
-60
ISOLATION (dB)
-70
-80
-90
-100
Fo
3Fo
0 5 10 15 20 25 30 35
FREQUENCY (GHz)
4Fo
* With respect to input level
Output Return Loss for
Several Input Frequencies
0
3
MULTIPLIERS
DIE
-5
-10
-15
INPUT RETURN LOSS (dB)
-20
3456789
+14 dBm
+12 dBm
+10 dBm
+8 dBm
FREQUENCY (GHz)
-5
4GHzIn
-10
6GHzIn
-15
OUTPUT RETURN LOSS (dB)
-20
8 10121416
8GHzIn
OUTPUT FREQUENCY (GHz)
12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Web Site: www.hittite.com
3 - 39
Page 3
MICROWAVE CORPORATION
HMC204 FREQUENCY DOUBLER 4 - 8 GHz INPUT
FEBRUARY 2001
HMC204
3
MULTIPLIERS
DIE
Conversion Loss@ 25 Deg C
vs. Drive Level
0
-5
-10
-15
-20
-25
-30
CONVERSION LOSS (dB)
-35
-40
3456789
+12 dBm
+15 dBm
+8 dBm
+10 dBm
INPUT FREQUENCY (GHz)
Conversion Loss @ -55 Deg C
vs. Drive Level
0
-5
-10
-15
-20
-25
-30
CONVERSION LOSS (dB)
-35
-40
3456789
+15 dBm
+12 dBm
+10 dBm
+8 dBm
INPUT FREQUENCY (GHz)
Output Return Loss with
4 GHz Input
0
-5
-10
+10 dBm+12 dBm
-15
OUTPUT RETURN LOSS (dB)
-20
8 10121416
OUTPUT FREQUENCY (GHz)
+8 dBm
Output Return Loss with
6 GHz Input
0
-5
+8 dBm
-10
+12 dBm
-15
OUTPUT RETURN LOSS (dB)
-20
8 10121416
+10 dBm
OUTPUT FREQUENCY (GHz)
Conversion Loss @ +85 Deg C
vs. Drive Level
0
-5
-10
-15
-20
-25
-30
CONVERSION LOSS (dB)
-35
-40
3456789
+15 dBm
+12 dBm
+10 dBm
+8 dBm
INPUT FREQUENCY (GHz)
Output Return Loss with
8 GHz Input
0
-5
-10
+12 dBm
-15
OUTPUT RETURN LOSS (dB)
-20
8 10121416
+10 dBm
OUTPUT FREQUENCY (GHz)
+8 dBm
12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Web Site: www.hittite.com
3 - 40
Page 4
MICROWAVE CORPORATION
HMC204 FREQUENCY DOUBLER 4 - 8 GHz INPUT
HMC204
FEBRUARY 2001
Schematic
Absolute Maximum Ratings
Input Drive +27 dBm
Storage Temperature -65 to +150 deg C
Operating Temperature -55 to +125 deg C
Outline Drawing ( See Pages 8 - 2 and 8 -3 for Handling Procedures )
0.66
(0.026)
1.48 (0.058)
0.51
(0.020)
RF IN
GND
IN
GND
Hittite
1997
GND
OUT
RF OUT
GND
3
MULTIPLIERS
DIE
6507
w135
0.14 (0.005)
DIE THICKNESS IS 0.100 (0.004), BACKSIDE IS GROUND
BOND PADS ARE 0.100 (0.004) SQUARE
BOND PAD SPACING, CTR-CTR: 0.150 (0.006)
ALL DIMENSION IN MILLIMETERS (INCHES)
ALL TOLERANCES ARE ± 0.025 (±0.001)
BOND PAD METALLIZATION : GOLD
BACKSIDE METALLIZATION : GOLD
12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Web Site: www.hittite.com
1.19 (0.047)
1.33 (0.052)
3 - 41
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