300MHz-45.5GHz Waveguide Filters / Waveguide Bandpass Filters
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Product Overview
HS Series Waveguide Bandpass Filters are high-performance microwave filter products independently developed by Shenzhen Huashi Digital Technology Co., Ltd., designed for satellite communications, broadcasting, meteorological reception, and 5G interference mitigation. Featuring standard waveguide cavity structures, these filters offer low insertion loss, high stopband rejection, large power capacity, and excellent thermal stability, covering C to Ka band frequencies.
Key Features
- Low insertion loss design for high transmission efficiency
- Excellent stopband rejection for effective interference isolation
- Standard waveguide flange interfaces (BJ series) for easy installation
- Aluminum/copper alloy cavity with robust structure and superior heat dissipation
- Wide frequency coverage from C-band to Ka-band
- Silver plating / black paint surface treatment for corrosion resistance
- Custom frequency and parameter options available
Technical Specifications
The following table lists detailed technical specifications for the HS Series waveguide bandpass filters. For frequencies and parameters not listed, please contact us for customization.
| Model | Freq. Range | Insertion Loss | VSWR | Stopband F1 | Stopband F2 | Conn. Type | Dimension |
| HS-BPF3.95GWN | 3.7-4.2 GHz | 1 dB | 1.5 | ≥65 dB @ 3.2 GHz | ≥65 dB @ 4.4 GHz | BJ84 (WR112) | 145×100×70 mm |
| HS-BPF8.205GWN | 7.91-8.5 GHz | 0.3 dB | 1.2 | ≥60 dB @ 7.348 GHz | ≥65 dB @ 9.252 GHz | BJ84 (WR112) | 105×46×35 mm |
| HS-BPF11.725GWN | 10.7-12.75 GHz | 0.5 dB | 1.5 | ≥25 dB @ 9.59 GHz | ≥25 dB @ 14 GHz | BJ120 (WR75) | 75×38×38 mm |
| HS-BPF19.45GWN | 17.7-21.21 GHz | 0.4 dB | 1.3 | — | ≥20 dB @ 25 GHz | BJ220 (WR42) | 61×23×23 mm |
| HS-BPF30.2GWN | 29.4-31 GHz | 0.3 dB | 1.3 | ≥30 dB @ DC-25 GHz | — | BJ320 (WR28) | 155×34×20 mm |
| HS-BPF38GWN | 36-40 GHz | 1 dB | 1.3 | ≥60 dB @ 34.1 GHz | ≥60 dB @ 42 GHz | BJ320 (WR28) | 49×24×20 mm |
| HS-BPF44.5GWN | 43.5-45.5 GHz | 2 dB | 2 | ≥60 dB @ 42.8 GHz | ≥60 dB @ 46.2 GHz | BJ400 (WR22) | 71×13×9 mm |
Waveguide Interface Reference
| Interface Type | Frequency Range | Application Band |
| BJ84 (WR112) | 7.05-10 GHz | X Band |
| BJ120 (WR75) | 10-15 GHz | Ku Band |
| BJ220 (WR42) | 17.6-26.4 GHz | K Band |
| BJ320 (WR28) | 26.5-40 GHz | Ka Band |
| BJ400 (WR22) | 32.9-50.1 GHz | Q/V Band |
Ordering Information
- Model Naming: HS-BPF + Frequency + Interface Code, e.g., HS-BPF3.95GWN = 3.7-4.2GHz waveguide BPF.
- Interface Codes: W = Waveguide flange, N = N-type, S = SMA, K = 2.92mm, A = 2.4mm.
- Material: C/X-band products use aluminum alloy; Ka-band products use copper alloy.
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