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Ceramic Fixed Band Pass Filters
Dielectric Resonators Ceramic Filters
In Housings
Ceramic Filters are offered in dielectric and connectorized forms, delivering superior high Q performance in a smaller sized package. VHF and UHF in bandpass and band reject designs.
Frequency Range: 0.27 to 3 GHz
Bandwidth: 1% to 30%
K&L’s Dielectric Resonator Bandpass Filters are available in standard packages with a basic Chebychev design. Connectors available are SMA and RF pins. Through the use of ceramic technology, this filter series offers superior temperature stability and low insertion loss.
Dielectric Resonators
| Frequency (MHz) | 3 dB % BW | VSWR | Impedance (Ohms) | No. of Sections | Shock | Vibration | Temperature | Temp. Stability | Relative Humidity |
| 500-3000 | 1.0-10 | 1.5:1 | 50 | 3-6 | 20 G’s, 1/2 Sine, 11 Ms | 10 G’s, 10 Hz2000 Hz | -40 to +85 °C (Operating) -50 to +125 °C (Non- Operating) | +2 to +11 ppm/°C | 0-95% |
Example To Order: 3DR20-1000/T50-O/O
| Example | 3 | DR | 20 | 1000 | T | 50 | O | O |
| Code | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
| Code | Description |
| 1 | Number of Sections: 3-6 |
| 2 | Series: DR,DL,DT or DH |
| 3 | Resonator Size Designator: 4mm , 6mm , others available |
| 4 | Center Frequency : 500-3000 MHz |
| 5 | Supplemental Codes (See Page 13 of Catalog) |
| 6 | Bandwidth : 1.0- 10 |
| 7 | Input Connector : See Connector Table |
| 8 | Output Connector: See Connector Table |
| Connector | Code |
| SMA Female | O |
| SMA Male | OP |
| Gull WIng | PX |
Dielectric Resonator Line Drawings
Dimensions are determined by Filter Wizard outline.
Dimensions are determined by Filter Wizard outline.
Dielectric Resonator Attenuation
Open Frame Ceramic Filters
- Designed for Low Cost While Providing High “Q” Response
- Extremely Temperature Stable
- Covers the 270 MHz to 3000 MHz Frequency Range
- 3 dB BW Available up to 10%
- Designs Available in 3-6 Sections
- Chebyshev Design Response
- Series 3 and 5 are ROHs compliant
- See page 46 for Reflow Profile and Suggested Mounting Information.
Open Frame
| Frequency (MHz) | 3 dB % BW | VSWR | Impedance (Ohms) | No. of Sections | Shock | Vibration | Temperature | Temp. Stability | Relative Humidity |
| 500-3000 | 1.0-10 | 1.5:1 | 50 | 3-6 | 20 G’s, 1/2 Sine, 11 Ms | 10 G’s, 10 Hz2000 Hz | -40 to +85 °C (Operating) -50 to +125 °C (Non- Operating) | +2 to +11 ppm/°C | 0-95% |
PCB Layout
Mechanical
Note: Dimensions for 1000 MHz filters shown
3DR23-1000/U20-1.9
Surface Mounting - Tab
3DR25-1000/U20-1.9 Leadless Surface Mount - Series 5
This mounting configuration offers best isolation.
Typical Reflow Profile/Installation Notes
Installation Notes:
* The rate of heating and cooling must be controlled to preclude thermal cracking of the devices.Processes, heating or cooling, should not exceed a rate of 200°C per minute. Spikes must not exceed 100°C maximum for any solder operation. Avoid forced cooling or contact with heat sinks, such as conveyor belts, metal tables or cleaning solutions, before the units reach ambient temperatures.
- A typical re-flow profile is provided above.
- All solder-able surfaces must be free of contaminants for maximum solder ability
- The relative mass of all components should be considered when establishing a re-flow procedure.
- Higher density board populations may take longer to achieve re-flow temperatures.
- SMT Products can be cleaned via solvent based, aqueous, semi-aqueous, and alcohol based systems.
- Units must be completely dried as moisture could cause false electrical performance readings.
- Mishandling of product may result in damage to the device (please do not bend RF leads, if applicable
- All SMT filters are assembled using SN96 high temperature solder, as a minimum.
- K&L recommends that customers use SN60 or SN63 or an equivalent during installation for signal and ground connections.
- The rate of heating and cooling must be controlled to preclude thermal cracking of the devices.
- Processes, heating or cooling, should not exceed a rate of 200°C per minute.
- Spikes must not exceed 100°C maximum for any solder operation.
- Avoid forced cooling or contact with heat sinks, such as conveyor belts, metal tables or cleaning solutions, before the units reach ambient temperatures.
Product Family
About The Technology
Ceramic Fixed Band Pass Filters
Dielectric resonator filters are available as an open frame or packaged product, supporting narrow bandwidths and low insertion loss, designed for applications requiring superior temperature stability and high Q response. . Packaged RF Ceramic Filters can be sealed to gross or fine leak specifications and are available in connectorized form or with gull-wing or flat pack hermetic pins for input and output connections. The entire line of Ceramic Filters is extremely temperature stable and comes at a lower cost point than other available filters, adding to the overall value of the product.
Featured Brands
Resources
Pole/Zero ICE Product Catalog
BSC Filters Brochure
K&L Microwave Filters Product Catalog
Tunable Filters Brochure
Access Filter Wizard
Access QuEST
Features & Specifications
Affording higher “Q” factors than Lumped Element Filters of a similar size, RF Ceramic Filters offer temperature stability and low insertion loss.
Frequency: VHF and UHF from 0.27 to 3 GHz (L band, S band)
Features: Microwave Ceramic Filters are available in bandwidths from 1% to 30% and configurations of 2 to 12 sections in a metal enclosure or open frame design. RF Ceramic Filters are available in a Q range of 500 to 1500 with bandpass and band reject designs available.
Benefits
MODULAR
SWaP
CUSTOM DESIGN
Applications
MPG's RF Ceramic Filters offer high-quality performance in a small package size, making them ideal for tight configurations, including those in the following markets: defense, EW, RADAR, communications, SATCOM, telecom, SIGINT, aerospace, space, automated test equipment, navigation/GPS and data links.
Contact
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