RF Filters

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We offer RF filters for aircraft, aerospace, medical, power plant control, traffic signal, transportation equipment and a wide range of other applications.

Radio frequency (RF) and microwave filters represent a class of electronic filter, designed to operate on signals in the megahertz to gigahertz frequency ranges (medium frequency to extremely high frequency). This frequency range is used by most broadcast radio, television, and wireless communication equipment (mobile phones, Wi-Fi, etc.).

Accordingly, most RF and microwave devices will include some kind of filtering on the signals transmitted or received. Such filters are commonly used as building blocks for duplexers and diplexers to combine or separate multiple frequency bands.

What does an RF filter do?

Filters fulfil one of the following functions:
  1. RF band-pass filter: selects only a desired band of frequencies
  2. RF band-stop filter: eliminates an undesired band of frequencies
  3. RF low-pass filter: allows only frequencies below a cutoff frequency to pass
  4. RF high-pass filter: allows only frequencies above a cutoff frequency to pass

RF Filter types

There are many different types or models for RF filters. Below are some of the more commonly used forms.

Constant-k: The constant-k filter’s advantage lies in the ease of calculating values for the various components. This enables it to be simply designed with minimal theoretical knowledge about the mathematics, unlike many other filters. However, its performance does not quite match that of other filter types, although for many applications it is more than adequate.

Butterworth: This type of filter provides the maximum in band flatness, although it provides a lower stop-band attenuation than a Chebyshev filter. However, it is also able to provide better group delay performance, and hence lower overshoot.

Bessel: This filter provides the optimum in-band phase response and therefore also provides the best step response. It is often used where signals incorporate square waves, etc as the shape is maintained best of all.

Chebyshev: This filter provides fast roll off after the cut off frequency is reached. However, this is at the expense of in-band ripple. The more in-band ripple that can be tolerated, the faster the roll off.

Elliptic: This filter, also known as the Cauer filter, has significant levels of in-band and out of band ripple, and as expected the higher the degree of ripple that can be tolerated, the steeper it reaches its ultimate roll off.
 
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BPF900A
BPF900A - Filter, Band Pass, 902MHz to 928MHz

23T4566

Filter, Band Pass, 902MHz to 928MHz

L-COM

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Band Pass - 902MHz a 928MHz GSM, ISM, RFID, RF, SCADA - -
BPF24-801A
BPF24-801A - BAND PASS FILTER, 2.4GHZ, 8 POLE

23T4550

BAND PASS FILTER, 2.4GHZ, 8 POLE

L-COM

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BPF.24.01
BPF.24.01 - BAND PASS FILTER, 2.4 - 2.5 GHZ ROHS COMPLIANT: YES

36AJ3162

BAND PASS FILTER, 2.4 - 2.5 GHZ ROHS COMPLIANT: YES

TAOGLAS

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Band Pass - 2.4GHz to 2.5GHz UAV/Drone Antennas - Airvu
BPF.58.01
BPF.58.01 - BAND PASS FILTER, 5.48 - 5.85 GHZ ROHS COMPLIANT: YES

36AJ3163

BAND PASS FILTER, 5.48 - 5.85 GHZ ROHS COMPLIANT: YES

TAOGLAS

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Band Pass - 5.48GHz to 5.85GHz UAV/Drone Antennas - Airvu
2450LP14B100T
2450LP14B100T - LOW PASS FILTER, 2.45GHZ

41T1689

LOW PASS FILTER, 2.45GHZ

JOHANSON TECHNOLOGY

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Low Pass 6Pins 2.4GHz to 2.5GHz Bluetooth, ISM and 802.11, WLAN, ZigBee 0603 [1608 Metric] -
2450LP14B100T
2450LP14B100T - Filter, Low Pass, 6 Pins, 2.4GHz to 2.5GHz, 0603 [1608 Metric]

21M6552

Filter, Low Pass, 6 Pins, 2.4GHz to 2.5GHz, 0603 [1608 Metric]

JOHANSON TECHNOLOGY

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Low Pass 6Pins 2.4GHz a 2.5GHz Bluetooth, ISM and 802.11, WLAN, ZigBee 0603 [1608 Metric] -
748323024
748323024 - RF FILTER, BAND PASS, 2.4GHZ TO 2.5GHZ ROHS COMPLIANT: YES

75AJ2939

RF FILTER, BAND PASS, 2.4GHZ TO 2.5GHZ ROHS COMPLIANT: YES

WURTH ELEKTRONIK

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Band Pass 4Pins 2.4GHz to 2.5GHz RF, Wireless Communication Systems Like DECT, PACS, PHS, GSM, WLAN, Bluetooth 0805 [2012 Metric] WE-BPF
748323155
748323155 - RF FILTER, BAND PASS, 0805 ROHS COMPLIANT: YES

75AJ2941

RF FILTER, BAND PASS, 0805 ROHS COMPLIANT: YES

WURTH ELEKTRONIK

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Band Pass 4Pins 5.15GHz to 5.875GHz RF, Wireless Communication Systems Like DECT, PACS, PHS, GSM, WLAN, Bluetooth 0805 [2012 Metric] WE-BPF
748111009
748111009 - RF FILTER, LOW PASS, 908MHZ TO 928MHZ ROHS COMPLIANT: YES

75AJ2935

RF FILTER, LOW PASS, 908MHZ TO 928MHZ ROHS COMPLIANT: YES

WURTH ELEKTRONIK

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Low Pass 8Pins 908MHz to 928MHz RF, Wireless Communication Systems Like DECT, PACS, PHS, GSM, WLAN, Bluetooth 0805 [2012 Metric] WE-LPF
FI105L250014-T
FI105L250014-T - Multilayer Filter, Low Pass, 4 Pins, 2.4GHz to 2.5GHz, 0402 [1005 Metric]

54T9222

Multilayer Filter, Low Pass, 4 Pins, 2.4GHz to 2.5GHz, 0402 [1005 Metric]

TAIYO YUDEN

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Low Pass 4Pins 2.4GHz to 2.5GHz Bluetooth, WLAN, ZigBee 0402 [1005 Metric] -
LP0603A0947ANTR
LP0603A0947ANTR - Filter, Low Pass, 4 Pins, 935MHz to 960MHz, 0603 [1608 Metric]

36K5639

Filter, Low Pass, 4 Pins, 935MHz to 960MHz, 0603 [1608 Metric]

KYOCERA AVX

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Low Pass 4Pins 935MHz a 960MHz GPS, Mobile Communications, RFID, Satellite TV Receivers, Vehicle Location Systems, Wireless LANs 0603 [1608 Metric] -
0915LP15B026E
0915LP15B026E - Filter, Low Pass, 8 Pins, 902MHz a 928MHz, 0805 [2012 Metric]

41T0902

Filter, Low Pass, 8 Pins, 902MHz a 928MHz, 0805 [2012 Metric]

JOHANSON TECHNOLOGY

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Low Pass 8Pins 902MHz a 928MHz - 0805 [2012 Metric] -
DEA100915LT-6319A1
DEA100915LT-6319A1 - RF FILTER, LOW PASS, 824MHZ TO 915MHZ ROHS COMPLIANT: YES

29AJ5129

RF FILTER, LOW PASS, 824MHZ TO 915MHZ ROHS COMPLIANT: YES

TDK

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Low Pass 4Pins 824MHz to 915MHz GSM, LTE, UMTS, 5G 0402 [1005 Metric] DEA
FI105B245024-T
FI105B245024-T - Multilayer Filter, Band Pass, 4 Pins, 2.4GHz to 2.5GHz, 0402 [1005 Metric]

46T5708

Multilayer Filter, Band Pass, 4 Pins, 2.4GHz to 2.5GHz, 0402 [1005 Metric]

TAIYO YUDEN

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Band Pass 4Pins 2.4GHz a 2.5GHz Bluetooth, WLAN, ZigBee 0402 [1005 Metric] -
FI212B190223-T
FI212B190223-T - Filter, Band Pass, 4 Pins, 1.884GHz to 1.93GHz, 0805 [2012 Metric]

05R7234

Filter, Band Pass, 4 Pins, 1.884GHz to 1.93GHz, 0805 [2012 Metric]

TAIYO YUDEN

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Band Pass 4Pins 1.884GHz a 1.93GHz PHS 0805 [2012 Metric] -
LP0603A2140ANTR
LP0603A2140ANTR - LOW PASS FILTER, 2170MHZ, FULL REEL

55K6852

LOW PASS FILTER, 2170MHZ, FULL REEL

KYOCERA AVX

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Low Pass 4Pins 2.11GHz to 2.17GHz GPS, Mobile Communications, RFID, Satellite TV Receivers, Vehicle Location Systems, Wireless LANs 0603 [1608 Metric] -
FI212B396001-T
FI212B396001-T - Filter, Band Pass, 4 Pins, 3.168GHz to 4.752GHz, 0805 [2012 Metric]

83T0126

Filter, Band Pass, 4 Pins, 3.168GHz to 4.752GHz, 0805 [2012 Metric]

TAIYO YUDEN

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Band Pass 4Pins 3.168GHz a 4.752GHz Electronic Appliances and Electronic Communications Equipment 0805 [2012 Metric] -
2450BP15E0100E
2450BP15E0100E - FILTER, BANDPASS, 2.4GHZ

44W4474

FILTER, BANDPASS, 2.4GHZ

JOHANSON TECHNOLOGY

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Band Pass 4Pins 2.4GHz to 2.5GHz - 0805 [2012 Metric] -
5515BP15B975E
5515BP15B975E - RF Filter, Band Pass, 4 Pins, 4.9GHz to 5.875GHz, 0805 [2012 Metric]

11N6623

RF Filter, Band Pass, 4 Pins, 4.9GHz to 5.875GHz, 0805 [2012 Metric]

JOHANSON TECHNOLOGY

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Band Pass 4Pins 4.9GHz to 5.875GHz - 0805 [2012 Metric] -
3600BP15M600E
3600BP15M600E - BAND PASS FILTER, 3.3-3.9GHZ, 0805

66AH5019

BAND PASS FILTER, 3.3-3.9GHZ, 0805

JOHANSON TECHNOLOGY

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Band Pass 4Pins 3.3GHz to 3.9GHz - 0805 [2012 Metric] -
DEA162450BT-1298A1
DEA162450BT-1298A1 - RF FILTER, BAND PASS, 2.4GHZ TO 2.5GHZ ROHS COMPLIANT: YES

29AJ5142

RF FILTER, BAND PASS, 2.4GHZ TO 2.5GHZ ROHS COMPLIANT: YES

TDK

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Band Pass 3Pins 2.4GHz to 2.5GHz Bluetooth, WLAN 0603 [1608 Metric] DEA
FI212B190223-T
FI212B190223-T - Filter, Band Pass, 4 Pins, 1.884GHz to 1.93GHz, 0805 [2012 Metric]

83T0125

Filter, Band Pass, 4 Pins, 1.884GHz to 1.93GHz, 0805 [2012 Metric]

TAIYO YUDEN

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Band Pass 4Pins 1.884GHz a 1.93GHz PHS 0805 [2012 Metric] -
1575CH15A0030E
1575CH15A0030E - Splitter, Band Pass, 4 Pins, 1.56GHz to 1.59GHz, 0805 [2012 Metric]

46W1429

Splitter, Band Pass, 4 Pins, 1.56GHz to 1.59GHz, 0805 [2012 Metric]

JOHANSON TECHNOLOGY

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Band Pass 4Pins 1.56GHz a 1.59GHz - 0805 [2012 Metric] -
1575CH15A0030E
1575CH15A0030E - Splitter, Band Pass, 4 Pins, 1.56GHz to 1.59GHz, 0805 [2012 Metric]

55T4135

Splitter, Band Pass, 4 Pins, 1.56GHz to 1.59GHz, 0805 [2012 Metric]

JOHANSON TECHNOLOGY

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Band Pass 4Pins 1.56GHz a 1.59GHz - 0805 [2012 Metric] -
FI105B245024-T
FI105B245024-T - Multilayer Filter, Band Pass, 4 Pins, 2.4GHz to 2.5GHz, 0402 [1005 Metric]

46T5709

Multilayer Filter, Band Pass, 4 Pins, 2.4GHz to 2.5GHz, 0402 [1005 Metric]

TAIYO YUDEN

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Band Pass 4Pins 2.4GHz a 2.5GHz Bluetooth, WLAN, ZigBee 0402 [1005 Metric] -