一、Characteristics
MBF2R65/2R75 thin-film bandpass filter is 50Ω input and output, gold wire bonding, frequency is 2.65GHz-- 2.75GHz, center frequency is 2.7GHz, bandwidth is 100MHz, center frequency insertion loss is 4.5dB@2.7GHz, The return loss is 15 dB@2.7GHz, the fluctuation at 2.75GHz is 1dB, and the out-of-band suppression is greater than or equal to 40 dB@2.2GHz. Greater than or equal to 40 dB@3.5 GHz. The operating temperature is -55℃~+85℃, the storage temperature is -55℃~+125℃, and the maximum output power is 33dBm. It has the advantages of high performance, low temperature, wide temperature range, high power, small size, high line accuracy, good temperature characteristics, high integration, easy welding, light weight, good performance and high stability. Used in multi-module integrated circuits.
Microstrip thin-film filter
二、Electrical Characteristics
| Item | Min | Typical | Max | Unit |
| Frequency center | - | 2.7 | - | GHz |
| Band Width | 2.65 | - | 2.75 | GHz |
| Ripple in BW | - | - | 1 | dB |
| Insertion loss@ fo | - | 4.5 | - | dB |
| Return loss | - | 15 | - | dB |
| Attenuation | ≥ 40 @ 2.2 GHz | dB |
| ≥ 40 @ 3.5 GHz | dB |
三、Environmental parameter
| Operating temperature | -55℃~+85℃ |
| Storage temperature | -55℃~+125℃ |
| Input power (max) | 33dBm |
四、Dimension
| Symbol | Value（mm） |
| Min | Nominal value | Nominal value |
| L | 5.5 | - | 5.6 |
| W | 5.5 | - | 5.6 |
| T | - | 0.254 | - |
Microstrip thin-film filter dimension
五、Characteristic curve
Attenuation ＆ Return loss VS Frequency Distal Attenuation VS Frequency
六、Characteristic curve
七、Attention
1. The device is recommended to be used in separate cavities, about 0.2mm from the side wall, about 3mm from the surface of the top cover, and the device ports are interchangeable.
2. Devices are recommended to be bonded with a low-stress conductive adhesive such as ME8465.
3. The device should be installed on a carrier such as cov (recommended) or molybdenum copper and the thermal expansion coefficient of the substrate (6.5~8.0ppm/℃), and the thickness of the carrier is ≥0.2mm.
4. When used, it is recommended that the bond of the microstrip line be matched with a T-shape structure, and the specific size of the T-shape is shown in the following figure.
Rogers 5880 10 mil
| Rogers 5880 10 mil |
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| Applicable frequency：DC ~ 38 GHz | Applicable frequency：DC ~ 32 GHz |
| Notice：The top of the T-shaped figure is 50 um from the edge of the base plate; Frequencies below 10 GHz do not need to be matched |
八、Application
MBF2R65/2R75 thin-film bandpass filter is widely used in satellite communications, mobile communications, electronic countermeasures, aerospace, Internet of things, radar, precision guidance, national defense and military fields, as well as 5G communication, optical communication and other intelligent terminals of civil microelectronics communication.
As a manufacturer of microwave electronic components, the company provides 3-13 order, 2GHz- 40GHz, 3dB bandwidth from 5% to 60%, coplanar waveguide input and output thin-film low-pass filter, thin-film high-pass filter, tthin-film band-pass filter, thin-film band-stop filter. However, this product is a relatively customized product, and the device has been made and cannot be changed. When customizing the film filter, the user needs to put forward a clear parameter description, and the parameter requirements beyond the physical limit of the material can be negotiated by both sides to achieve the best indicators.
