Surface-mount bandpass filters for 2.4GHz ISM signal conditioning
Manufacturer： walsin
# Introduction to the RFBPF2012090A1T Product Series
## 1. Overview
The RFBPF2012090A1T product series represents a cutting - edge range of radio frequency (RF) band - pass filters. These filters are designed to play a crucial role in modern RF systems, where they are used to selectively allow a specific range of frequencies to pass through while attenuating unwanted frequencies. This selectivity is essential for ensuring the proper functioning of RF communication systems, radar systems, and other RF - based applications.
## 2. Key Features
### 2.1 Frequency Selectivity
- The RFBPF2012090A1T filters are engineered to provide excellent frequency selectivity. They are capable of precisely defining a passband, which is the range of frequencies that can pass through the filter with minimal attenuation. In this series, the passband is carefully tuned to meet the specific requirements of various applications, allowing for efficient signal transmission within the desired frequency range.
- The sharp roll - off characteristics of these filters ensure that frequencies outside the passband are rapidly attenuated. This helps in reducing interference from adjacent frequency bands, which is particularly important in crowded RF environments where multiple signals may be present simultaneously.
### 2.2 Low Insertion Loss
- Insertion loss is a critical parameter in RF filters, as it represents the amount of signal power that is lost when the signal passes through the filter. The RFBPF2012090A1T series features low insertion loss within the passband. This means that the filters can transmit the desired RF signals with minimal degradation, ensuring that the signal strength remains high and the quality of the transmitted information is maintained.
- Low insertion loss also contributes to the overall efficiency of the RF system, as less power is wasted in the filtering process. This can lead to reduced power consumption and longer battery life in portable RF devices.
### 2.3 High Power Handling Capability
- These filters are designed to handle relatively high levels of RF power. This makes them suitable for use in high - power RF transmitters and other applications where significant amounts of power are involved. The ability to handle high power without significant distortion or damage ensures the reliability and durability of the filters in demanding RF environments.
### 2.4 Compact Size
- The RFBPF2012090A1T filters are available in a compact form factor. Their small size makes them ideal for use in space - constrained applications, such as mobile devices, wearable technology, and miniaturized RF modules. The compact design also allows for easy integration into existing RF systems, reducing the overall footprint of the system.
### 2.5 Excellent Temperature Stability
- Temperature variations can have a significant impact on the performance of RF filters. The RFBPF2012090A1T series is designed to exhibit excellent temperature stability. This means that the filter's performance, including its passband characteristics and insertion loss, remains relatively constant over a wide range of operating temperatures. This stability ensures reliable operation in different environmental conditions.
## 3. Applications
### 3.1 Wireless Communication Systems
- In cellular networks, the RFBPF2012090A1T filters can be used in base stations and mobile devices. They help in separating different frequency bands used for communication, such as those for voice calls, data transfer, and 5G services. By filtering out unwanted frequencies, these filters improve the signal quality and reduce interference, leading to better call quality and faster data transfer rates.
- In Wi - Fi routers and access points, the filters can be used to ensure that the transmitted and received signals are within the specified Wi - Fi frequency bands. This helps in maintaining a stable and reliable wireless connection.
### 3.2 Radar Systems