Waveguide Band Pass Filters Coaxial Comb Interdigital Lumped Element Microstrip Microwave Millimeter Wave Radio Frequency Spiral Suspended Stripline

Waveguide Band Pass Filters Coaxial Comb Interdigital Lumped Element Microstrip Microwave Millimeter Wave Radio Frequency Spiral Suspended Stripline

Features:

High Stopband Rejection
Small Size
Light Weight
Anti 5G Interference

Applications:

Telecom
Laboratory Test
Receivers
Satellite Earth Station

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The waveguide band pass filter uses waveguide technology to select signals within a certain frequency range while filtering out signals of other frequencies.

The millimeter wave waveguide band pass filter is designed based on the waveguide principle and is a high-frequency signal processing device that can perform filtering, separation, synthesis, and other functions. It is commonly used in fields such as microwave communication and radar systems. The structure of a lumped element waveguide band pass filters consists of a waveguide tube and a connector, and the output port can be controlled by devices such as RF switches or modulators.

Waveguide devices tend to have higher power handling capabilities than equivalent coaxial technologies because of the way in which the air medium they carry carries the RF energy.

Application of coaxial waveguide band pass filters:

1. In the receiver: By selecting frequencies and filtering out environmental noise and interference frequencies outside the operating bandwidth, the received signal quality is ensured.
2. In the transmitter: suppress out of band power, improve the electromagnetic compatibility characteristics of the system, and avoid interference with other systems.

Radio frequency waveguide band pass filters play an important role in multiple fields, including but not limited to wireless communication, audio processing, biomedical signal processing, signal modulation and demodulation, radar systems, image processing, sensor signal processing, audio effectors, and data acquisition systems. These applications demonstrate the importance of waveguide band pass filters in signal processing and communication systems, helping to improve signal quality and reliability.

Qualwave supplies microstrip waveguide band pass filters cover frequency range 3.625~94GHz. The microwave waveguide band pass filters are widely used in many applications.
We also provide comb waveguide band pass filters, interdigital waveguide band pass filters, suspended stripline waveguide band pass filters and spiral waveguide band pass filters.

Part Number	Passband (GHz, Min.)	Passband (GHz, Max.)	Insertion Loss (dB, max.)	VSWR (Max.)	Stopband Attenuation (dB)	Waveguide Size	Flange
QWBF-3625-4200-40	3.625	4.2	0.8	1.35	-50@3.4GHz, -60@3.5GHz, -45@3.55~3.6GHz, -40@3.6GHz, -45@4.3GHz, -65@4.5~4.9GHz	WR-229 (BJ40)	FDM40, FDP40
QWBF-3700-4200-20	3.7	4.2	0.6	1.4	70@3.5~3.6GHz, 80@3.4GHz, 20@4.25GHz, 55@4.3~4.4GHz	WR-229 (BJ40)	FDM40, FDP40
QWBF-3800-4200-45	3.8	4.2	0.5	1.35	-60@3.5GHz, -65@3.6GHz, -60@3.7GHz, -45@4.3GHz, -65@4.5~4.9GHz	WR-229 (BJ40)	FDM40, FDP40
QWBF-5662-20	5.662	-	1	1.5	20@5.642GHz, 20@5.682GHz	WR-159 (BJ58)	FDP58
QWBF-5380-5920-25	5.38	5.92	0.2	1.2	25@4.85GHz, 25@6.45GHz	WR-187 (BJ48)	FAM48
QWBF-7250-7750-120	7.25	7.75	0.4	1.2	120@7.9~8.4GHz	WR-112 (BJ84)	FBP84
QWBF-7900-8400-90	7.9	8.4	0.4	1.2	90@7.25~7.75GHz	WR-112 (BJ84)	FBP84
QWBF-14930-20	14.93	-	1	1.5	20@14.9GHz, 20@14.96GHz	WR-62 (BJ140)	FBP140
QWBF-37760-38260-47	37.76	38.26	0.6	1.3	50@36GHz, 47@39.3GHz	WR-28 (BJ320)	FBM320
QWBF-39060-39560-48	39.06	39.56	0.6	1.3	48@38.015GHz, 50@41.4GHz	WR-28 (BJ320)	FBM320
QWBF-86000-94000-40	86	94	2	1.8	40@DC~82GHz, 40@98~106GHz	WR-10 (BJ900)	UG-387/UM