Device Overview

General Description

The MFBP-00140CSP3 passive MMIC surface mount bandpass filter is an ideal solution for small form factor, high rejection filtering. The MFBP-00140CSP3 features an 18.0 - 22.4 GHz 1 dBc passband and 2.1 dB center frequency insertion loss. Passive GaAs MMIC technology allows production of smaller filter constructions that replace larger form factor circuit board constructions. Tight fabrication tolerances allow for less unit-to-unit variation than traditional filter technologies. The MFBP-00140CSP3 is available as a 3.5 mm CSP3. Low unit to unit variation allows for accurate simulations using the provided S2P file taken from measured production units.

Photo of MFBP-00140CSP3

Features

  • Excellent Return Loss, 20 dB Typical
  • High Stop Band Suppression
  • Wide Stop Band with Fast Roll-Off
  • This product embodies Marki Microwave's U.S. Pat. 11,869,858.

Applications

N/A

Functional Block Diagram

Block Diagram

Part Ordering Options

Part NumberDescriptionPackageGreen StatusProduct LifecycleExport Classification
MFBP-00140CSP3Passive GaAs MMIC 18 - 22.4 GHz Bandpass FilterCSP3

RoHS

REACH

ReleasedEAR99
EVB-MFBP-00140Evaluation Board, Passive GaAs 18 - 22.4 GHz MMIC Bandpass FilterEVB

RoHS

REACH

ReleasedEAR99

Table Of Contents

Revision History

Revision CodeRevision DateComment
-2026-04-13Initial Release

Rev: - | Copyright © 2026 Marki Microwave LLC.

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Port Configuration and Functions

Port Functions

PortFunctionDescriptionDC Equivalent
Circuit
Ground PaddleGround CSP3 package ground path is provided through the ground paddle and should be connected to RF ground.Equivalent circuit for the Ground
Pin 1Input/Output Pin 1 is DC short to ground for the CSP3 package.Equivalent circuit for the Input/Output
Pin 4Input/Output Pin 4 is DC short to ground for the CSP3 package.Equivalent circuit for the Input/Output

Rev: - | Copyright © 2026 Marki Microwave LLC.

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Specifications

Absolute Maximum Ratings

The Absolute Maximum Ratings indicate limits beyond which damage may occur to the device. If these limits are exceeded, the device may be inoperable or have a reduced lifetime.

ParameterMaximum RatingUnit
Maximum Storage Temperature 125°C
Minimum Operating Temperature -55°C
Minimum Storage Temperature -65°C
Port 1 DC Current 1.5A
Port 2 DC Current 1.5A

Package Information

ParameterDetailsRating
ESD250 to < 500 VoltsHBM Class 1A
Dimensions-3.50 x 3.50 mm
Moisture Sensitivity Level-MSL 1

Rev: - | Copyright © 2026 Marki Microwave LLC.

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Electrical Specifications

The electrical specifications apply at TA=+25°C in a 50Ω system. Typical data shown is for the filter in a CSP3 package with a sine wave input applied to Pin 1. Min and Max limits are guaranteed at TA=+25°C.

ParameterTest ConditionsMinimum
Frequency
(GHz)
Maximum
Frequency
(GHz)
MinTypMaxUnit
1 dBc Passband 25°C
17.96 22.37---GHz
3 dBc Passband 25°C
17.47 22.63---GHz
30 dBc Rejection Point 25°C
16.67 24.65---GHz
Center Freq 25°C
- --20.04-GHz
Insertion Loss @ fc 25°C
- --2.1-dB
Passband Return Loss 25°C
- --20-dB
Group Delay 25°C
- --346-ps
Impedance 25°C
- --50-Ω

Rev: - | Copyright © 2026 Marki Microwave LLC.

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Typical Performance Plot

Insertion Loss (dB) graph for MFBP-00140CSP3
Insertion Loss (dB) graph for MFBP-00140CSP3
Return Loss (dB) graph for MFBP-00140CSP3
Return Loss (dB) graph for MFBP-00140CSP3
Group Delay (ps) graph for MFBP-00140CSP3

Rev: - | Copyright © 2026 Marki Microwave LLC.

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Mechanical Data

Rev: - | Copyright © 2026 Marki Microwave LLC.

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Footprint Image

Footprint of the package for MFBP-00140CSP3

Rev: - | Copyright © 2026 Marki Microwave LLC.

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Evaluation Board - Outline Drawing

Outline Drawing

Rev: - | Copyright © 2026 Marki Microwave LLC.

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