Ceramic Resonator Filters - Q Microwave´s ceramic resonator filters offer the middle ground in performance between lumped-element filters and combline filters over the range of 500 MHz to 6 GHz. The standard product is provided in an SMT package. Typical prototype delivery is 4 to 6 weeks.
- QRB Series Bandpass Filter
- QRN Series Notch Filters
CERAMIC RESONATOR BANDPASS FILTERS
The QRB standard ceramic resonator (CR) filter product series offers a variety of Surface Mount Technology (SMT) fitler products. Selectable or customized features are indicated by Q Microwave´s part number convention and the definitions provided in the description table.
Q Microwave´s QRB-Series Description & Part Number Code
Description: QRB(Field 1)M(Field 2)P(Field 3)S(Field 4)(Field 5)
| PARAMETER | STANDARD FILTER SPECIFICATIONS | FIELD DESCRIPTION | | CUSTOM PERFORMANCE | | | | Center Frequency (Fc) | 800 to 3500 MHz | Field 1 (In MHz) | | 3dB Bandwidth (BW3dB) | 1% to 3% of Fc | Field 2 (In percent) | | Rejection | Characterized by Chebychev transfer function with 2 to 6 sections. See plots. | Field 3 (In Number of Sections) | | STANDARD PERFORMANCE | | | | Insertion Loss (I/L) | Determined by Fc, BW3dB, and sections. See plots. | None | | Return Loss | 10 dB typical over 70% of BW3dB. See plots. | Standard | | Characteristic Impedance | 50 Ohms | Standard | | Input Power | 20 dBm maximum | Standard | | ENVIRONMENTAL CAPABILITIES | | | | Operating Temperature | 0oC to +50oC | Standard | | Storage Temperature | -65oC to +125oC | Standard | | Thermal Cycles | 25 cycles -65oC / +125oC | Standard | | Humidity | 90%-95% relative humidity, non-condensing environment | Standard | | MECHANICAL CONFIGURATION | | | | Option 1 Connectorized | - Finish - Silver or brass
- I/O - SMA-Female connectors
- Contact sales for outline drawings.
| Field 4 (Select "CS") | | Option 2 Pins - Formed (Surface Mountable) | - Finish - Silver or brass.
- I/O - Formed Leads
- Contact sales for outline drawings.
| Field 4 (Select "FS") | | Option 3 Pins - Straight | - Finish - Silver or brass
- I/O - Formed Leads
- Contact sales for outline drawings.
| Field 4 (Select "FA") | | Option 4 Surface Mount Technology (SMT) | - Finish - Polyamide substrate with tin or solder finish.
- I/O - SMT
- Contact sales for outline drawings.
| Field 4 ("SM") | | SPECIAL OPTIONS | A variety of special options are available. Unlimited special options may be included in Field 5. Consult Q Microwave´s Sales Office for details. | Field 5 | |
Select QRB-Series Filters
| Part Number/ Description | Filter Type | Fc (MHz) | BW3dB (MHz) | Sect. | Rejection | I/L (dB) at Fc | I/O Style | | QRB2524M4P4SSM | CR, BPF | 2524 | 100 | 4 | 20 dBc @ 2596 MHZ, 40 dBc at 2895 MHz | 2.8 | SMT | | QRB2640M4P5SSM | CR, BPF | 2640 | 100 | 6 | 30 dBc @ 2500 MHz, 20 dBc @ 3200 MHz | 2.5 | SMT | | QRB3515M4P3SSM | CR, BPF | 3515 | 150 | 3 | 20 dBc @ 3000 MHz & 4115 MHz | 2.0 | SMT | | QRB3550M3P7SSM | CR, BPF | 3550 | 100 | 7 | 30 dBc @ 3475 MHz & 3625 MHz;50 dBc @ 3400 MHz & 3700 MHz | 4.5 | SMT | |
