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Tunable Filter
1. Basal Description
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The tunable filter is a late-model RF Band Pass Filter. It has "Reduce Transmitter Noise" " Improve Receiver Sensitivity" " Improve Cosite Performance" advantages etc..
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2. Environmental Parameter
Environmental Parameter |
Standard |
Especial |
Vibration(5-2000Hz) |
10g |
20g |
Shock(11ms) |
30g |
50g |
Relative Humidity |
0~90% |
95% |
Operating Temperature |
-40 ~ +60°C |
-55 ~ +85 °C |
Storage Temperature |
-40 ~ +100°C |
-40 ~ +125°C |
Package |
Surface Mount, SMA and customization available |
3. Tunable Filter(Four Series)
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 Low Power Voltage Tuning Filter Series |
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Tunable Frequency Range: |
30 to 610MHz |
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Sub-band: |
30~90MHz,30~120MHz, 108~174MHz, 225~400MHz, 225~512MHz, 215~610MHz,200~450MHz
Customization available |
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Power Handling: |
+5dBm ~ +8dBm max |
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Tuning Voltage: |
+0.5 ~ +28V DC |
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Frequency Drift: |
+/-1MHz max(-40 ~ +60°C) |
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1. Front End Preselection Voltage Tuning Filter |
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3dB Bandwidth: |
10%~40% |
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Shape Factor(30dB BW/3dB BW): |
6 max(two sections) |
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Power Handling: |
+5dBm ~ +8dBm |
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Insertion Loss in Pass Band: |
3dB max |
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Tuning Time: |
10us max |
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Input and Output Impedance: |
50Ohms |
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VSWR: |
2.0 max |
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Group Delay: |
150ns max |
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Group Delay Ripple: |
30ns max |
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Phase-Frequency Characteristic: |
Linear in 3dB bandwidth |
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Phase Ripple: |
+/-5° |
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Survival Input Power: |
1W |
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2. Postposition Preselection Voltage Tuning Filter |
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3dB Bandwidth: |
4%~10% |
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Shape Factor(30dB BW/3dB BW): |
A Type: 4 max(four sections)
B Type: 3 max(six sections)
C Type: 2 max(eight sections) |
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Power Handling: |
+5dBm ~ +8dBm |
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Insertion Loss in Pass Band: |
A Type: 6dB max,B Type: 8dB max,C Type:10dB max |
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Tuning Time: |
10us max |
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Input and Output Impedance: |
50Ohms |
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VSWR: |
2.0 max |
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Group Delay: |
150ns max |
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Group Delay Ripple: |
30ns max |
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Phase-Frequency Characteristic: |
Linear in 3dB bandwidth |
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Phase Ripple: |
+/-5° |
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3. Combined Voltage Tuning Filter |
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1W Medium Power Digital Control Frequency Hopping Filter Series |
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Power Handling: |
+30dBm |
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Hopping Speed: |
20us max |
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Hopping Point: |
250(Customization available) |
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Frequency Range: |
30 to 610MHz |
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Sub-band: |
30~90MHz,30~120MHz, 108~174MHz, 225~400MHz, 225~512MHz, 215~610MHz,200~450MHz
Customization available |
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Input and Output Impedance: |
50Ohms |
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Frequency Drift: |
+/-0.5MHz max(-40 ~ +60°C) |
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Power Supply: |
+5V, +28V,...(+100V) |
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Digital Control Protocol: |
8 bit Parallel(TTL Compatible) |
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Tune Adress: The binary tuning word is determined by the following relationship: |
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For example: If you wish to tune to 300 MHz using a 225 to 400 MHz filter, the tune word is: (300-225)/(400-225)x250=107.14(01101011 binary)
NOTE: Round off to the nearest decimal integer!
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1. Front End Preselection Frequency Hopping Filter |
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3dB Bandwidth: |
10%~40% |
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Shape Factor(30dB BW/3dB BW): |
6 max(two sections) |
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Insertion Loss in Pass Band: |
6dB max |
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VSWR: |
2.0 max |
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Group Delay: |
150ns max |
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Group Delay Ripple: |
30ns max |
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Phase-Frequency Characteristic: |
Linear in 3dB bandwidth |
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Phase Ripple: |
+/-5° |
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2. Postposition Preselection Digital Control Frequency Hopping Filter |
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3dB Bandwidth: |
4%~10% |
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Shape Factor(30dB BW/3dB BW): |
A Type: 6 max(four sections)
B Type: 4 max(six sections) |
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Insertion Loss in Pass Band: |
A Type: 6dB max,B Type: 7dB max |
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VSWR: |
2.0 max |
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Group Delay: |
150ns max |
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Group Delay Ripple: |
30ns max |
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Phase-Frequency Characteristic: |
Linear in 3dB bandwidth |
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Phase Ripple: |
+/-5° |
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3. Combined Digital Control Frequency Hopping Filter |
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50W High Power Pass Band Switching Filter Bank Series |
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Technical Specification: |
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Frequency Range: |
30 to 610MHz |
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Sub-band: |
30~90MHz,30~120MHz, 108~174MHz, 225~400MHz, 225~512MHz, 215~610MHz,200~450MHz
Customization available |
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Each section can be divided severval sub-band according to 5~50% 1dB bandwidth |
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Max Input power: |
150W min |
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Insertion Loss in Pass Band:
(Including the Insertion Loss of PIN Switch ) |
BW/f0≥5%: 2dB max |
BW/f0≥10%: 1.8dB max |
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BW/f0≥20%: 1.5dB max |
BW/f0≥40%: 1.2dB max |
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Attenuation: |
BW/f0≥5%: -65dB max |
BW/f0≥10%: -60dB max |
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BW/f0≥20%: -50dB max |
BW/f0≥40%: -50dB max |
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Input and Output Impedance: |
50 Ohms |
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VSWR: |
2.0 max |
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Power Supply: |
+5V, |
+10V, |
+100V |
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Frequency Switching Time: |
20us max |
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Combined Digital High Power Frequency Hopping Filter |
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Technical Specification: |
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Frequency Range: |
30 to 610MHz |
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Sub-band: |
30~90MHz,30~120MHz, 108~174MHz, 225~400MHz, 225~512MHz, 215~610MHz,200~450MHz
Customization available |
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Max Input power: |
150W min |
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Input and Output Impedance: |
50 Ohms |
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VSWR: |
2.0 max |
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Power Supply: |
+5V, +28V,+100V |
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Hopping Speed: |
25us max |
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Digital Control Protocol: |
8 bit Parallel(TTL Compatible) |
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Tuning Adress: |
Same AS 1W Mediun Power Digital Control Frequency Hopping Filter |
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Tunable filter size can be customized |
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