Design a crystal notch (narrow band stop) filter

€30-250 EUR

Closed

Posted

over 6 years ago

€30-250 EUR

Paid on delivery

We would like to hire someone to design (no PCB needed, only schematic but the simulation needs to be as accurate as possible) a crystal notch at a specific frequency (in the MHz). We already have the quartz, we also have every parameters of each piece (Fs, Fp, Cs, Cp, Q, Rs ...) This filter needs to be matched at 50ohm IN and OUT. Attenuation should be at least 90db. Maximum Insertion loss : 6db Min Bandwidth : 1kHz We have some measurement instruments if needed : VNA, Spectrum analyser, oscilloscope, crystal measurements ...

Circuit Design

Electrical Engineering

Electronics

Engineering

Project ID: 14715591

About the project

12 proposals

Remote project

Active 7 yrs ago

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12 freelancers are bidding on average €140 EUR for this job

@uetian09ee506

Hi dear, we can chat regarding your project Relevant Skills and Experience Electrical Engineering Proposed Milestones €155 EUR - Milestone

€155 EUR in 3 days

4.8

(290 reviews)

7.3

@Valuesolutions

Hello, how are you? I hope you have a bright day/evening from your side. I have read the details provided, but please contact me so that we can discuss more on the project. Relevant Skills and Experience Circuit Design, Electrical Engineering, Electronics, Engineering Proposed Milestones €147 EUR - ..

€147 EUR in 3 days

4.4

(28 reviews)

5.1

@nextrotek

We are 10 Members team with 8+ years of experience. Specialized in all sorts of Electrical and Electronics Automation. We design and Build Products in most efficient possible manner Our Services: * LabVIEW and Matlab programming * FPGA, PIC, AVR and micro controller programming * Circuit and PCB designing * Electronics equipment maintenance * YOKOGAWA’S CENTUM CS3000 DCS programming * Analog Electronics * Rasberry Pie * Arduino series * Intergration of all types of sensors (IR, ultrasonic, heat, pressure,etc;) * GPS * GSM * RTOS (Real Time Operating Systems) * Zigbee, Bluetooth, WiFI modules * All sorts of Automation Systems * LCD, TFT * Finger print recognition * Mass Productions

€155 EUR in 3 days

5.0

(1 review)

2.8

@calinsas

Efficient with researching new components and integrating them in custom designs. Thorough digital testing before releasing results with focus on quality. Good communication skills Relevant Skills and Experience Research, electronics design and simulations, Fluent in English and French. Proposed Milestones €155 EUR - Upon completetion of the task

€155 EUR in 5 days

5.0

(2 reviews)

1.0

@peter16388

A proposal has not yet been provided

€150 EUR in 4 days

0.0

(0 reviews)

0.0

@RNDKHUB

Hi, We are from RNDK HUB. We are new to freelancer but we have more then 2 years of experience in coding, circuit design/debugging, matlab and various microprocessor/controller. Thank you. Relevant Skills and Experience Filter design Proposed Milestones €133 EUR - complete project Please contact us for detail discuss about your project.

€133 EUR in 3 days