一、Characteristics
The cavity suspended microstrip high-pass filter (referred to as: suspended microstrip HPF filter) is cut by the whole metal, built-in microstrip line, solid structure, high reliability, input/output 50Ω impedance matching, easy to cascade use, input/output can be used interchangeably; Stable and reliable performance in the full temperature range, meeting the requirements of military working environment (-55℃ ~ +85℃); The frequency coverage range is 0.3~18GHz, high near-end rejection, good consistency, small size, high Q value, small standing wave, flat in-band frequency characteristics, small insertion loss, high out-of-band rejection; It can meet the continuous impact force of 20 grams in 11 milliseconds, and can meet the continuous vibration of 10 grams in the frequency of 10 ~ 2000Hz. The storage temperature range is -65℃~+90℃, and the power is 10~200W. When the microstrip cavity high-pass filter is used, pay attention to the good grounding of the shell, otherwise it will affect the out-of-band suppression and flatness index.
Metal cavity high-pass filter
二、Model & Electrical characteristics
| Type and parameter table of cavity high-pass filter (cavity HPF filter) |
| Part No | Frequency (GHz) | Insertion loss (dB)
| V.S.W.R | Attenuation (dB)
| Power(W) | Connection |
| HPF500 | 0.5 - 1.5 | ≤ 1 | ≤ 1.8 | ≥ 60 @ DC - 0.27 GHz | 15 | SMA-F |
| HPF1000 | 1.0 - 4.0 | ≤ 1.2 | ≤ 2.0 | ≥ 50 @ DC - 0.8 GHz | 15 | SMA-F |
| HPF1100 | 1.1 - 3.0 | ≤ 2 | ≤ 1.5 | ≥ 80 @ DC - 0.97 GHz | 15 | SMA-F |
| HPF1200 | 1.2 - 6.0 | ≤ 1.5 | ≤ 1.5 | ≥ 35 @ 0.825 - 0.92 GHz | 15 | SMA-F |
| HPF1300 | 1.3 - 6.0 | ≤ 1.5 | ≤ 1.8 | ≥ 60 @ DC - 1.0 GHz | 15 | SMA-F |
| HPF1600 | 1.6 - 6.0 | ≤ 1.5 | ≤ 1.8 | ≥ 60 @ DC - 1.2 GHz | 15 | SMA-F |
| HPF2000 | 2.0 - 12.0 | ≤ 1 | ≤ 1.8 | ≥ 45 @ DC - 1.52 GHz | 15 | SMA-F |
| HPF2200 | 2.2 - 8.0 | ≤ 1.5 | ≤ 1.5 | ≥ 35 @ 1.7 - 1.8 GHz | 15 | SMA-F |
| HPF2650 | 2.65 - 13.0 | ≤ 1.5 | ≤ 1.8 | ≥ 60 @ DC - 2.0 GHz | 15 | SMA-F |
| HPF2700 | 2.7 - 13.0 | ≤ 1.5 | ≤ 1.8 | ≥ 60 @ DC - 2.0 GHz | 15 | SMA-F |
| HPF3000 | 3.0 - 13.0 | ≤ 1.5 | ≤ 1.6 | ≥ 60 @ DC - 2.5 GHz | 15 | SMA-F |
| HPF3300 | 3.3 - 12.0 | ≤ 1.5 | ≤ 1.8 | ≥ 50 @ DC - 2.55 GHz | 15 | SMA-F |
| HPF3400 | 3.4 - 13.0 | ≤ 1.5 | ≤ 1.8 | ≥ 60 @ DC - 2.7 GHz | 15 | SMA-F |
| HPF3500 | 3.5 - 13.0 | ≤ 1.5 | ≤ 1.8 | ≥ 60 @ DC - 3.0 GHz | 15 | SMA-F |
| HPF4000 | 4.0 - 6.0 | ≤ 4 | ≤ 1.5 | ≥ 70 @ DC - 3.6 GHz | 15 | SMA-F |
| HPF4200 | 4.2 - 13.5 | ≤ 2 | ≤ 2.0 | ≥ 50 @ DC - 3.7 GHz | 15 | SMA-F |
| HPF4300 | 4.3 - 13.0 | ≤ 2 | ≤ 2.0 | ≥ 50 @ DC - 3.8GHz | 15 | SMA-F |
| HPF4400 | 4.4 - 12.0 | ≤ 1.5 | ≤ 2.0 | ≥ 50 @ DC - 3.4 GHz | 15 | SMA-F |
| HPF5500 | 5.5 - 16.0 | ≤ 1 | ≤ 1.8 | ≥ 50 @ DC - 4.25 GHz | 15 | SMA-F |
| HPF5800 | 5.8 - 18.0 | ≤ 2 | ≤ 1.8 | ≥ 60 @ DC - 4.8 GHz | 15 | SMA-F |
| HPF6600 | 6.6 - 18.0 | ≤ 1.5 | ≤ 2.0 | ≥ 50 @ DC - 5.1 GHz | 15 | SMA-F |
| HPF7800 | 7.8 - 18.0 | ≤ 1.2 | ≤ 1.8 | ≥ 50 @ DC - 5.95 GHz | 15 | SMA-F |
| HPF8000 | 8.0 - 18.0 | ≤ 1.5 | ≤ 2.0 | ≥ 40 @ DC - 6.0 GHz | 15 | SMA-F |
| HPF8800 | 8.8 - 18.0 | ≤ 1.2 | ≤ 1.8 | ≥ 50 @ DC - 6.8 GHz | 15 | SMA-F |
| HPF10000 | 10.0 - 18.0 | ≤ 1.5 | ≤ 2.0 | ≥ 50 @ DC - 7.7 GHz | 15 | SMA-F |
| HPF11000 | 11.0 - 18.0 | ≤ 1.2 | ≤ 2.0 | ≥ 50 @ DC - 8.5 GHz | 15 | SMA-F |
| HPF12000 | 12.1 - 18.0 | ≤ 1.5 | ≤ 2.0 | ≥ 50 @ DC - 9.35 GHz | 15 | SMA-F |
| HPF13000 | 13.0 - 18.0 | ≤ 1.2 | ≤ 1.8 | ≥ 50 @ DC - 10.0 GHz | 15 | SMA-F |
| Note: Due to many product models, only some representative models are listed in the table |
三、Application & attention
Cavity mounted microstrip HPF filters have: Wide frequency coverage, high near-end suppression, good frequency selection filtering, good consistency, small volume, high Q value, small standing wave, flat in-band amplitude-frequency characteristics, small insertion loss, high out-of-band suppression. Products in RF RF circuit, electronic countermeasures, aviation, aerospace, radar, satellite communications, mobile communications and a variety of electronic test equipment below 20GHz broadband frequency selection, in high pass, low pass and more than double frequency bandpass filters are widely used.
Metal cavity high-pass filter (cavity HPF filter) is a relatively strong customization of the product, the product has been made can not be changed, because the indicators of microwave electronic components are related to each other, mutual influence, so the user needs to specify the indicator requirements before customization, beyond the physical limit of the material parameters requirements, can be negotiated by both sides to achieve the best indicators. The company can customize cavity filter, high-pass filter, low-pass filter, band-stop filter, band-pass filter.
