freiberufler Senior High Frequency RF/Antenna Engineer auf freelance.de

Senior High Frequency RF/Antenna Engineer

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  • auf Anfrage
  • 31137 Hildesheim
  • Europa
  • fa  |  en
  • 10.06.2022

Kurzvorstellung

- Antenna design and characterization (e.g, 76-81 GHz radar systems).
- RF active and passive design.
- Simulation CAD tools (e.g, Ansys HFSS, CST, MATLAB, Altium Designer, Python)
- Measurement facilities and techniques.
- Multi-layer PCB design.

Qualifikationen

  • Antenna array
  • Antennenanlage / Antennentechnik
  • Automotive industry
  • CAE (rechnergestützte Entwicklung / computer-aided engineering)
  • EM Simulation Softwares
  • Measurement Techniques and Equipments
  • Millimeter wave
  • MIMO Systems
  • Multi-layer Technologies (PCB, LTCC)
  • Radar systems
  • RF System Characterization
  • Wirtschaftsingenieurwesen

Projekt‐ & Berufserfahrung

RF Engineer (Grade A) (Festanstellung)
RFS GmBH, Hannover
2/2021 – offen (3 Jahre, 2 Monate)
Telekommunikation
Tätigkeitszeitraum

2/2021 – offen

Tätigkeitsbeschreibung

» Radiating RF cable design for sub-6 GHz indoor and outdoor wireless applications.
» Technical project management of newly developing products.
» Customer and product support, from development to the series production.
» Close contact with the production lines, and preparation of trial orders and qualification reports.
» Performing necessary measurements, including scattering parameters, longitudinal loss, and near field coupling loss

Eingesetzte Qualifikationen

Antennenanlage / Antennentechnik

RF/Antenna Engineer (Festanstellung)
Kundenname anonymisiert, Hildesheim
1/2019 – 7/2020 (1 Jahr, 7 Monate)
Automobilindustrie
Tätigkeitszeitraum

1/2019 – 7/2020

Tätigkeitsbeschreibung

-Design and development of compact multi-purpose roof top transceiver modules for automotive applications.

-Broadband and multi-band passive antenna design and development for automotive applications, such as LTE, GNSS, SDARS, WiFi and C2X antennas.

-Project management and concept definition of antenna systems for automotive applications.

-Product support in the concept and prototype phase up to the transition to series production.

-Construction of prototypes.

-Development-accompanying and customer-related antenna measurements as well as their evaluation. and documentation in the form of measurement reports.

-Similar projects have been done for various large OEMs like BMW, Audi, JLR.

Eingesetzte Qualifikationen

Antennenanlage / Antennentechnik, CAE (rechnergestützte Entwicklung / computer-aided engineering), Wirtschaftsingenieurwesen

RF Researcher
Kundenname anonymisiert, Leuven
5/2018 – 12/2018 (8 Monate)
High-Tech- und Elektroindustrie
Tätigkeitszeitraum

5/2018 – 12/2018

Tätigkeitsbeschreibung

-Antenna array design, fabrication and measurement for backhaul 71-76 GHz Communication systems.

-Antenna array design, fabrication and measurement for backhaul 81-86 GHz Communication systems.

- Multi-layer PCB module design for final product.

- 110 GHz Network Analyzer, Anechoic Chamber, and 150um pico probes are used for characterization of antenna arrays.

Eingesetzte Qualifikationen

Antennenanlage / Antennentechnik, Nachrichtentechnik

RF Researcher
Kundenname anonymisiert, Leuven
2/2015 – 5/2018 (3 Jahre, 4 Monate)
Automobilindustrie
Tätigkeitszeitraum

2/2015 – 5/2018

Tätigkeitsbeschreibung

-Antenna design, fabrication and characterization for short-range MIMO automotive radar applications at 77-81 GHz band.

-Antenna design, fabrication and characterization for medium-range MIMO automotive radar applications at 77-81 GHz band.

-Around 10 various antenna topologies have been investigated for both short-range and medium-range automotive radar projects, regarding the discrepancies between antenna performances in final radar module, including broadside gain, side lobe level, gain bandwidth, impedance bandwidth, feeding network complexity, and PCB build-up structure.

- Multi-layer PCB module design for final product.

- 110 GHz network analyzer, anechoic chamber, and 150um pico probes are used for characterization of antenna arrays.

- Around 1 year supervision of other antenna designers.

Eingesetzte Qualifikationen

Antennenanlage / Antennentechnik, Radartechnik, CAE (rechnergestützte Entwicklung / computer-aided engineering)

RF Researcher
Kundenname anonymisiert, Leuven
4/2014 – 2/2016 (1 Jahr, 11 Monate)
High-Tech- und Elektroindustrie
Tätigkeitszeitraum

4/2014 – 2/2016

Tätigkeitsbeschreibung

- Antenna design, fabrication and measurement for short range MIMO robotic radar applications at 77-81 GHz band.

-5 various antenna topologies have been investigated for this project, regarding the discrepancies between antenna performances in final radar module, including broadside gain, side lobe level, gain bandwidth, impedance bandwidth, feeding network complexity, and PCB build-up structure.

- Multi-layer PCB module design for final product.

- 110 GHz network analyzer, anechoic chamber, and 150um pico probes are used for characterization of antenna arrays.

Eingesetzte Qualifikationen

Antennenanlage / Antennentechnik, Radartechnik, CAE (rechnergestützte Entwicklung / computer-aided engineering)

Internship
Kundenname anonymisiert, Leuven
4/2013 – 3/2014 (1 Jahr)
High-Tech- und Elektroindustrie
Tätigkeitszeitraum

4/2013 – 3/2014

Tätigkeitsbeschreibung

-Antenna design for 60 GHz MIMO system used for transmitting uncompressed video signal.

-Upgrading a measurement setup for characterization of designed antenna array in 60-90 GHz band, including radiation pattern and gain measurement.

- Multi-layer PCB module design for final product.

- 110 GHz network analyzer, anechoic chamber, and 150um pico probes are used for characterization of antenna arrays.

Eingesetzte Qualifikationen

Antennenanlage / Antennentechnik, CAE (rechnergestützte Entwicklung / computer-aided engineering)

RF Researcher
ITRC (Iranian Telecommunication Research Center), Tehran
4/2012 – 3/2013 (1 Jahr)
Telekommunikation
Tätigkeitszeitraum

4/2012 – 3/2013

Tätigkeitsbeschreibung

- RF Circuit design including power amplifier, pre-amplifier, and filter design for LTE base stations.

-Study on frequency synthesizers, and linearization techniques for power amplifiers at LTE base stations.

Eingesetzte Qualifikationen

Telekommunikation / Netzwerke (allg.), CAE (rechnergestützte Entwicklung / computer-aided engineering)

Research assistant
Kundenname anonymisiert, Tehran
9/2011 – 3/2012 (7 Monate)
Hochschulen und Forschungseinrichtungen
Tätigkeitszeitraum

9/2011 – 3/2012

Tätigkeitsbeschreibung

- Dual-band antenna and power splitter design for microwave wireless and satellite applications.

-Combining evolutionary algorithms (genetic algorithm and particle swarm optimization) with electromagnetic simulators to reach best optimized results at all targeted frequency bands.

Eingesetzte Qualifikationen

WLAN (Wireless Local Area Network), Antennenanlage / Antennentechnik

RF/Antenna Engineer
Rahnama Electronics, Tehran
9/2009 – 9/2011 (2 Jahre, 1 Monat)
High-Tech- und Elektroindustrie
Tätigkeitszeitraum

9/2009 – 9/2011

Tätigkeitsbeschreibung

-System design of RF front ends for frequency up and down converters (S and X-Band).

-Design and fabrication of passive and active microwave components (Amplifier, Filter, Mixer, . . .).

-Microstrip antenna array design and measurement at X-band.

-RF system characterization of NF, Phase Noise, Sensitivity, Psat, P1dB and IP3.

Eingesetzte Qualifikationen

CAE (rechnergestützte Entwicklung / computer-aided engineering), Pro/ENGINEER

Ausbildung

PhD
Electrical Engineering
2018
KU Leuven, Leuven, Belgium
Master
Telecommunication Engineering
2007
Tehran Polytechnic, Tehran, Iran
Bachelor
Electrical Engineering
2003
Tehran Polytechnic, Tehran, Iran

Über mich

Currently, I am working in Hannover area as senior RF/Antenna engineer working on concept definition and design of roof top antenna systems for automotive applications (e.g, LTE, GNSS, C2X). Further, during 2013-2018, I intensely worked on integrated antenna arrays for millimeter wave applications especially for 77-81 GHz automotive radar systems). As such, I had the great opportunity to elaborate on high-frequency technologies and computational electromagnetics. In addition, before my PhD I had several positions in different companies, as RF engineer, working on radio transceivers. During these positions, I did RF system and antenna design, characterization and measurement for 1-20 GHz applications. In total, I have almost 12 years of experience working in industry and research domains.

Regarding my professional experience in industry and research domains, I have the following skills and capabilities:

1. Expert in antenna design, analysis, and measurement in microwave and mm-wave bands (e.g. 79 GHz automotive radar systems).
2. Great experience in RF and microwave circuit and system design (power amplifiers, filters, couplers)
3. Highly skilled in RF test equipment (Spectrum analyzer, Network analyzer).
4. Expert in engineering software tools, e.g. Ansys HFSS, MATLAB, CST Studio, Agilent ADS, Altium Designer, and Python.
5. Great experience of working with international customers and teams.
6. Good experience of team supervision.
7. Having strong interpersonal and communication skills.
8. Having German Blue Card (work permit in Europe).

Weitere Kenntnisse

• Antenna design, analysis and measurement in microwave and millimeter-wave bands (e.g, 77-81GHz automotive radar systems).
• Active and passive design in microwave and millimeter-wave bands (power amplifiers, filters, couplers).
• RF characterization and measurement (1-20GHz radio systems).
• RF system design (including frequency down and up-converters).
• Multi-layer PCB design.
• Expert in advanced measurement facilities (including Network analyzer, and spectrum analyzer).
• Expert in engineering software environment (e.g. Ansys HFSS, MATLAB, CST Studio, Altium Designer)
• Interested in interdisciplinary and frontier topics in RF front-end technologies, and EM theory and applications (microwaves to THz).

Persönliche Daten

Sprache
  • Englisch (Fließend)
  • Persisch (Muttersprache)
Reisebereitschaft
Europa
Arbeitserlaubnis
  • Europäische Union
Profilaufrufe
2245
Alter
38
Berufserfahrung
14 Jahre und 6 Monate (seit 09/2009)
Projektleitung
2 Jahre

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