HARMONIC
MIXERS
These
waveguide bandwidth harmonic mixers are designed for use with spectrum
analzyers with diplexers, such as the Tektronix 492 and 494 and the
Hewlett-Packard
8555A, 8565A and 8569A. They are also used as phase locking and
receiver
mixers for antenna measurement systems such as the Scientific Atlanta
wide
range receivers. When used with an external diplexer*, these
harmonic
mixers can be used to phase lock millimeter wave sources.
The mixer contains
a rugged stripline mounted silicon beam-lead Schottky barrier
diode.
The small physical dimensions of these mixers make them ideal for use
in
lightweight, compact equipment. Two diode, balanced harmonic
mixers
optimized for even or odd harmonic mixing are also available.
Consult
factory.
SPECIFICATIONS
|
MODEL
|
FREQUENCY
(GHz)
|
Minimum detectable
signal (in 1 KHz
bandwidth)**
|
WAVEGUIDE
|
FLANGE
COMPATIBILITY
|
Dimensions (excluding
SMA female connector,
inches
|
|
KM
|
18-26.5
|
-95 dBm
|
WR-42
|
UG-595
|
.875 x 1.5 x .3
|
|
KaM
|
26.5-40
|
-85 dBm
|
WR-28
|
UG-599
|
.750 x 1.1 x .24
|
|
QM
|
33-50
|
-80 dBm
|
WR-22
|
UG-383
|
1.125 x 1.125 x .2
|
|
UM
|
40-60
|
-78 dBm
|
WR-19
|
UG383 (MOD)
|
1.125 x 1.125 x .2
|
|
VM
|
50-75
|
-75 dBm
|
WR-15
|
UG-385
|
.75 x .75 x .2
|
|
EM
|
60-90
|
-72 dBm
|
WR-12
|
UG-387
|
.75 x .75 x .2
|
|
WM
|
75-110
|
-70 dBm
|
WR-10
|
UG387 (MOD)
|
.75 x .75 x .2
|
|
FM
|
90-140
|
-68 dBm
|
WR-8
|
UG-387 (MOD)
|
.75 x .75 x .2
|
|
DM
|
110-170
|
-64 dBm
|
WR-6
|
UG-387 (MOD)
|
.75 x .75 x .2
|
*LO/IF diplexers are available
for
IF & LO ranges shown below:
Diplexer model
#
IF
range
LO range
MD1A
DC-1
GHz
1.8-7.5 GHz
MD2A
DC-1
GHz
5-20 GHz
MD4A
DC-2.5 GHz 5-20
GHz
**Minimum detectable signal
measured
with Tektronix 492 or 494 Spectrum Analyzer
LO and IF frequencies to 18 GHz
LO power requirement +15 dBm
maximum,
+6 dBm typical
Total RF + LO power input 100
milliwatts
maximum
Bias requirements -2 to +0.5 volts
with respect to mixer body, 20 mA maximum. Typically operates
self
biased with DC return to ground.
