Varactor Controlled Oscillator
21.20 - 23.60 GHz
Features
q
q
q
MA87881
V3.00
0.535
(13.59)
SELF LOCKING
MECHANICAL
FREQ./TUNER
0.900
(22.86)
q
q
q
Excellent Tuning Linearity
Small and Lightweight
Modulation and External AFC Control can be
Commonly Applied to the Electronic Tuning Bias
±0.05% Frequency vs. Temperature Stability
Suitable for Digital or Analog Microwave Radio
Applications
Specifically Designed for Reduced Microphonic
Characteristics
1.375
(22.86)
2.10 MAX.
(53.34)
0.118 DIA. THRU
HOLES TO MATE
WITH UG/595-U
WR-42 WAVEGUIDE
GROUND
GUNN BIAS
AFC BIAS
Dimensions in ( ) are in mm.
Description
A mechanically and electronically tunable Gunn
oscillator designed to generate RF power in the range of
21.2 to 23.6 GHz. This VCO is suitable as the transmitter
in point-to-point microwave radio systems. A Gunn
diode and GaAs hyperabrupt varactor diode are coupled
in a single high Q cavity to provide low AM/FM noise,
and excellent frequency and power stability with respect
to changes in operating temperature.
Specifications @
25°C
Parameter
Frequency Range
1
Power Output
Electronic Tuning Range
Modulation Sensitivity
Voltage Operating Range (Gunn)
2
Operating Current (Gunn)
Startup Current (Gunn)
Voltage Operating Range (Tuning)
Change Frequency vs. Temperature
Recommended Output Load Parameter
Operating Temperature Range (Ambient)
3
Waveguide Size/Flange
Symbol
F
P
OUT
∆F/∆V
MOD/SENS
V
OP
/GUNN
I
OP
I
TH
V
OP
/TUNING
∆F/∆T
LOAD (SWR)
T
OP
Units
GHz
mW
MHz
MHz/V
VDC
mA
mA
VDC
MHz
SWR
°C
Specifications
21.20 to 23.60
50 Min. Over T
OP
55 Min.
5.0 Typ.
+3.0 to +7.0
1400 Max.
1400 Max.
+1.0 to +13.0
±11 Max.
< 1.3:1 Max., Any Phase
-30 to +60
WR-42, UG-595/U
1. Available in 600 MHz mechanically tuned bands.
2. Specific voltage assigned by factory. Power supply should be held to ±0.10 V.
3. The ambient temperature is defined as air temperature.
4. A 2.2 microfarad capacitor is supplied between the Gunn bias pin and ground to suppress bias line oscillations.
Specifications Subject to Change Without Notice.
M/A-COM, Inc.
North America:
Tel. (800) 366-2266
Fax (800) 618-8883
s
1
Asia/Pacific: Tel. +81 (03) 3226-1671
Fax +81 (03) 3226-1451
s
Europe: Tel. +44 (1344) 869 595
Fax +44 (1344) 300 020
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