16GHz-38GHz spot frequency filtersCeramic Filters

Description

These filters utilize advanced high-Q ceramic resonator technology, enabling compact, lightweight, and environmentally robust solutions suitable for demanding commercial, industrial, and defense applications.

▌ Key Features

• Ultra-wide frequency coverage: 8 spot bands from 16 GHz to 38 GHz
• Low insertion loss: ≤1.5 dB across all models
• Excellent return loss: VSWR ≤1.5:1
• Deep stopband rejection: ≥40 dB at ±400 MHz from band edges
• Compact ceramic package: 44 × 22 × 22 mm
• Hermetic 0.38″ glass bead connectors for reliability
• High-Q ceramic resonator technology for sharp selectivity
• Operating temperature range: -40 °C to +85 °C
• Drop-in / surface-mount design for easy integration
• RoHS compliant materials and processes

▌ Typical Applications

1. Satellite Communications (SatCom) — uplink/downlink channel filtering
2. Point-to-Point & Point-to-Multipoint Microwave Radios
3. Radar Systems — receiver front-end & IF filtering
4. Test & Measurement Equipment
5. Electronic Warfare (EW) & Signal Intelligence (SIGINT)
6. 5G / 6G Millimeter-Wave Infrastructure
7. Aerospace & Defense Avionics

▌ Electrical Specifications — Model Matrix

Model	Freq. Range	IL (dB)	VSWR	Stopband F1	Stopband F2	Connector	Size (mm)
HS-BPF-1680/1720-38P	16.8–17.2 GHz	≤1.5 dB	≤1.5	≥40 dB @ 16.4 GHz	≥40 dB @ 17.6 GHz	0.38 Glass Beads	44×22×22
HS-BPF-1880/1920-38P	18.8–19.2 GHz	≤1.5 dB	≤1.5	≥40 dB @ 18.4 GHz	≥40 dB @ 19.6 GHz	0.38 Glass Beads	44×22×22
HS-BPF-2080/2120-38P	20.8–21.2 GHz	≤1.5 dB	≤1.5	≥40 dB @ 20.4 GHz	≥40 dB @ 21.6 GHz	0.38 Glass Beads	44×22×22
HS-BPF-2280/2320-38P	22.8–23.2 GHz	≤1.5 dB	≤1.5	≥40 dB @ 22.4 GHz	≥40 dB @ 23.6 GHz	0.38 Glass Beads	44×22×22
HS-BPF-3080/3120-38P	30.8–31.2 GHz	≤1.5 dB	≤1.5	≥40 dB @ 30.4 GHz	≥40 dB @ 31.6 GHz	0.38 Glass Beads	44×22×22
HS-BPF-3280/3320-38P	32.8–33.2 GHz	≤1.5 dB	≤1.5	≥40 dB @ 32.4 GHz	≥40 dB @ 33.6 GHz	0.38 Glass Beads	44×22×22
HS-BPF-3480/3520-38P	34.8–35.2 GHz	≤1.5 dB	≤1.5	≥40 dB @ 34.4 GHz	≥40 dB @ 35.6 GHz	0.38 Glass Beads	44×22×22
HS-BPF-3680/3720-38P	36.8–37.2 GHz	≤1.5 dB	≤1.5	≥40 dB @ 36.4 GHz	≥40 dB @ 37.6 GHz	0.38 Glass Beads	44×22×22

Note: All specifications are measured at +25 °C unless otherwise stated. IL = Insertion Loss. VSWR = Voltage Standing Wave Ratio. F1/F2 denote lower/upper stopband rejection frequencies.

• General Specifications (Common to All Models)

Parameter	Specification
Filter Type	Ceramic Bandpass Filter (BPF)
Frequency Range Coverage	16 GHz – 38 GHz (8 spot frequency bands)
Passband Ripple	≤0.5 dB (typical)
Insertion Loss	≤1.5 dB (all models)
VSWR / Return Loss	≤1.5 : 1
Stopband Rejection	≥40 dB @ ±400 MHz from band edge
Impedance	50 Ω
Connector Type	0.38 Glass Beads (hermetic)
Physical Dimensions	44 × 22 × 22 mm (all models)
Operating Temperature	-40 °C to +85 °C
Storage Temperature	-55 °C to +125 °C
Technology	High-Q Ceramic Resonator
Mounting Style	Drop-in / Surface Mount
Applications	Satellite Communications, Radar, Point-to-Point Radio, Test & Measurement

▌ Performance Characteristics

• Insertion Loss & Return Loss
• Passband insertion loss ≤1.5 dB measured across full operating temperature range.
• VSWR ≤1.5:1 ensures excellent impedance matching and minimal signal reflection.
• Passband ripple ≤0.5 dB (typical) for smooth in-band response.
• Stopband Rejection
• ≥40 dB rejection at ±400 MHz offset from each band edge (F1 low-side, F2 high-side).
• Monotonic roll-off ensures spurious signals are effectively suppressed.
• High-Q ceramic resonators provide sharp transition from passband to stopband.
• Mechanical & Environmental
• Compact 44×22×22 mm ceramic package — ideal for space-constrained designs.
• Hermetic 0.38″ glass bead connectors prevent moisture ingress.
• Operating temperature: -40 °C to +85 °C (industrial grade).
• Storage temperature: -55 °C to +125 °C.
• Meets MIL-STD-202 environmental test standards (vibration, shock, humidity).

▌ Ordering Information

Model Number	Frequency Band	Description
HS-BPF-1680/1720-38P	16.8–17.2 GHz	Ceramic BPF, 0.38 Glass Beads, 44×22×22 mm
HS-BPF-1880/1920-38P	18.8–19.2 GHz	Ceramic BPF, 0.38 Glass Beads, 44×22×22 mm
HS-BPF-2080/2120-38P	20.8–21.2 GHz	Ceramic BPF, 0.38 Glass Beads, 44×22×22 mm
HS-BPF-2280/2320-38P	22.8–23.2 GHz	Ceramic BPF, 0.38 Glass Beads, 44×22×22 mm
HS-BPF-3080/3120-38P	30.8–31.2 GHz	Ceramic BPF, 0.38 Glass Beads, 44×22×22 mm
HS-BPF-3280/3320-38P	32.8–33.2 GHz	Ceramic BPF, 0.38 Glass Beads, 44×22×22 mm
HS-BPF-3480/3520-38P	34.8–35.2 GHz	Ceramic BPF, 0.38 Glass Beads, 44×22×22 mm
HS-BPF-3680/3720-38P	36.8–37.2 GHz	Ceramic BPF, 0.38 Glass Beads, 44×22×22 mm