FB-1800_18 GHz Bandpass Filter

Device Overview

General Description

The FB series bandpass filters are CAD-optimized microstrip filter designs built on a low-loss substrate. These filters feature low insertion loss, excellent return loss and are suitable for high rejection filtering.

Download s-parameters here

Features

Low Insertion Loss
Excellent Return Loss
High Stop Band Suppression
Wide Stop Band
Sharp Roll-Off

Applications

Test and Measurement Equipment
SATCOM
Radar
RF Transceivers

Functional Block Diagram

Part Ordering Options

Part Number	Description	Connectors	Green Status	Product Lifecycle	Export Classification
FB-1800	18 GHz Bandpass Filter	Standard	Non-RoHS	Released	EAR99

Device Overview
Port Configuration and Functions
- Port Diagram
- Port Functions
Revision History
Specifications
Mechanical Data
- Outline Drawing

Revision History

Revision Code	Revision Date	Comment
-	2014-09-15	Datasheet Initial Release

Port Configuration and Functions

Port Diagram

Diagram of the port configuration for FB-1800

Port Functions

Port	Function	Connector Type	Description	DC Equivalent Circuit
Port 1	Input/Output	SMAF	Port 1 is DC open to Port 2 and GND. GND is provided through the case and RF connectors.
Port 2	Input/Output	SMAF	Port 2 is DC open to Port 1 and GND. GND is provided through the case and RF connectors.

Specifications

Package Information

Parameter	Details	Rating
Weight	-	22g
Dimensions	-	27.94 X 18.80 mm

Electrical Specifications

Specifications guaranteed from -55 to +100°C, measured in a 50Ω system.

Parameter	Test Conditions	Minimum Frequency (GHz)	Maximum Frequency (GHz)	Min	Typ	Max	Unit
1 dBc Passband ¹	Temp = 25°C	15.61	20.45	-	-	-	GHz
3 dBc Passband ²	Temp = 25°C	15.26	20.85	-	-	-	GHz
30 dBc Rejection Point ³	Temp = 25°C	13.86	22.3	-	-	-	GHz
Center Freq ⁴	Temp = 25°C	-	-	-	17.87	-	GHz
Insertion Loss @ fc ⁵	Temp = 25°C	-	-	-	1.8	-	dB
Passband Return Loss ⁶	Temp = 25°C	-	-	-	26	-	dB
Group Delay ⁷	Temp = 25°C	-	-	-	388	-	ps
Impedance ⁸	Temp = 25°C	-	-	-	50	-	Ω
Impedance	-	-	-	-	50	-	Ω
Passband	15.85-20.15 GHz (± 12% of fc)	15.85	20.15	-	-	-	GHz
Passband Return Loss	15.85-20.15 GHz	15.85	20.15	10	15	-	dB
RF Power	-	-	-	-	-	1	W
Stopband Suppression	11.65, 24.3 GHz	11.65	24.3	40	50	-	dB
Stopband Suppression	13.15, 22.6 GHz	13.15	22.6	25	30	-	dB

Parameter	Test Conditions	Minimum Frequency (GHz)	Maximum Frequency (GHz)	Min	Typ	Max	Unit
1 dBc Passband ¹	Temp = 25°C	15.61	20.45	-	-	-	GHz
3 dBc Passband ²	Temp = 25°C	15.26	20.85	-	-	-	GHz
30 dBc Rejection Point ³	Temp = 25°C	13.86	22.3	-	-	-	GHz
Center Freq ⁴	Temp = 25°C	-	-	-	17.87	-	GHz
Insertion Loss @ fc ⁵	Temp = 25°C	-	-	-	1.8	-	dB
Passband Return Loss ⁶	Temp = 25°C	-	-	-	26	-	dB
Group Delay ⁷	Temp = 25°C	-	-	-	388	-	ps
Impedance ⁸	Temp = 25°C	-	-	-	50	-	Ω
Impedance	-	-	-	-	50	-	Ω
Passband	15.85-20.15 GHz (± 12% of fc)	15.85	20.15	-	-	-	GHz
Passband Return Loss	15.85-20.15 GHz	15.85	20.15	10	15	-	dB
RF Power	-	-	-	-	-	1	W
Stopband Suppression	11.65, 24.3 GHz	11.65	24.3	40	50	-	dB
Stopband Suppression	13.15, 22.6 GHz	13.15	22.6	25	30	-	dB