Radio Filter Design Engineer at Ericsson

Beijing, Beijing, China -

Full Time

Start Date

Immediate

Expiry Date

13 Apr, 26

Salary

0.0

Posted On

13 Jan, 26

Experience

10 year(s) or above

Remote Job

Yes

Telecommute

Yes

Sponsor Visa

Skills

RF Filter Design, Electromagnetic Simulations, Circuit-Level Modeling, Prototyping, Lab Measurements, Collaboration, Reliability Testing, Failure Analysis, Technical Documentation, Qualification, Industrialization, Passive RF Filter Design, Transmission Line Theory, EM Simulation Tools, RF Lab Instruments, Analytical Skills, Communication Skills

Industry

Telecommunications

Description

Join our Team About this oppurtunity At Ericsson, we design and deliver the building blocks of mobile connectivity. As an RF Filter Design Engineer, you will focus on the research, design, and development of high-performance filters that are critical to the functionality of our radio products. You’ll work with a team of world-class RF engineers to ensure that our filters meet stringent requirements for insertion loss, selectivity, power handling, and linearity — all while balancing cost, size, and manufacturability. This is a unique opportunity to help shape the future of mobile communications with solutions that support 5G and beyond. What You Will Do: Design and optimize RF filters (e.g., cavity, ceramic, SAW/BAW, LTCC, dielectric) for wireless communication system. Perform electromagnetic simulations and circuit-level modeling using tools like HFSS, CST, ADS, or equivalent. Validate filter performance through prototyping and lab measurements (e.g., using VNA, spectrum analyzer, PIM tester). Collaborate with system architects, RF designers, mechanical engineers, and suppliers to ensure filter integration within the radio unit. Support DVT, reliability testing, and failure analysis for filter-related issues. Drive technology innovation in miniaturized and high-selectivity filtering techniques. Prepare technical documentation including design reports, tuning procedures, and production specifications. Support qualification and industrialization of filters with external partners. You will Bring: Master’s degree or above in RF/Microwave Engineering, Electronic Engineering, or related discipline. More than 7 years of experience in RF design and engineering. Strong theoretical understanding of passive RF filter design principles and transmission line theory. Hands-on experience designing filters for base stations, mobile devices, or RF modules. Proficient in EM and circuit simulation tools (e.g., HFSS, CST, ADS, AWR). Skilled in using RF lab instruments including VNA, spectrum analyzer, and PIM measurement systems. Strong analytical skills and attention to detail. Good teamwork, communication, and documentation skills in a collaborative environment. Fluent in English, both written and spoken. Preferred Qualifications: Experience with high-power RF filters, multi-band filters, or tunable filters. Familiarity with manufacturing processes for cavity, ceramic, or LTCC filters. Knowledge of 3GPP specifications and radio performance requirements. Experience working with external suppliers or ODMs.

Responsibilities

Design and optimize RF filters for wireless communication systems while ensuring performance meets stringent requirements. Collaborate with various engineering teams and support testing and validation processes.