PRELIMINARY
23 GHz Down Converter
FEATURES
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21.2 - 22.6 GHz Down Converter
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22.4 - 23.6 GHz Down Converter
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22 dB Conversion Gain
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Two Models Available:
C-Band LO Input (LO/3)
X-Band LO Input (LO/2)
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4.5 dB Typical Rx Noise Figure
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Supports Both U.S. and European Frequencies
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High Rx Input P1dB (-10 dBm Typ.)
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Highly Reliable Thin-Film Construction
DESCRIPTION
Celeritek has developed down converter assemblies
for applications in the standard U.S. and European 23 GHz
frequency bands. The complementary upconverters operate
at 21.2 to 22.6 GHz or 22.4 to 23.6 GHz while the down
converter operates at 22.4 to 23.6 GHz or 21.2 to 22.6 GHz.
EXPERIENCE AND CAPABILITIES
Celeritek is one of the major suppliers of commercial
communication microwave equipment to OEM suppliers. The
company’s in-house GaAs FET and MMIC capabilities, along
with extensive amplifier products, provide the basis for
Celeritek to offer high-performance products at competitive
prices in the commercial market. Also, the company uses a
combination of thin-film and softboard techniques to reduce
manufacturing costs and maintain high reliability.
Celeritek has a separate dedicated production line
and engineering team for communications products. This staff
in highly experienced in the development and production of
high-reliability, low-cost commercial products.
Down Converter Specifications
RF Input, GHz
Model CTR-231600-002
Model CTR-231601-002
Model CTR-232600-002
Model CTR-232601-002
LO Input Frequency
*Final LO shall be
≥10%
IF Output, GHz
LO Input Power, dBm
RF/IF Conversion Gain, dB
21.2 – 22.6
21.2 – 22.6
22.4 – 23.6
22.4 – 23.6
LO/3 or LO/2*
from either band edge
IF <4.0
+10 (±2 dB)
+22 (±2 dB at +25°C)
(±3 dB over temperature)
Noise Figure, dB
6.0 (Max.)
4.5 (Typ. at +25°C)
RF Input Power, dBm(@P1dB)
-10 (Typ. at +25°C)
RF Input Power, dBc
-1 dBm/IIP3 (Typ.)
3rd Order, 2 Tone IMD
(LO/3)
(LO/2)
(LO/3)
(LO/2)
IF Output Amplitude Flatness, dB
±0.25
(Over any 50 MHz band)
Group Delay Variation, nS
1.0 (Max.)
(Over any 50 MHz band)
LO/RF Leakage, dBm
-20 (Max.) at <LO/N
-10 (Max.) at LO
RF Input Return Loss, dB
10 (Min.)
LO Input Return Loss, dB
12 (Min.)
IF Output Return Loss, dB
12 (Min.)
Power, VDC**
@250 mA (Max.)
+5, ±0.2 VDC (6V Max.)
Interface Connections
IF/LO Output
SMA Female
RF Input
WR-42
threaded waveguide
** Caution: Modules do not include voltage regulator or reverse voltage protection
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