Upload Button Icon Add office photos

Qualcomm

Compare button icon Compare button icon Compare

Filter interviews by

Qualcomm RF Engineer Interview Questions, Process, and Tips

Updated 23 Feb 2024

Top Qualcomm RF Engineer Interview Questions and Answers

View all 8 questions

Qualcomm RF Engineer Interview Experiences

2 interviews found

RF Engineer Interview Questions & Answers

user image Anonymous

posted on 22 Jan 2024

Interview experience
3
Average
Difficulty level
Moderate
Process Duration
2-4 weeks
Result
Not Selected

I applied via Referral and was interviewed in Dec 2023. There were 3 interview rounds.

Round 1 - Technical 

(1 Question)

  • Q1. What is modulation, and what are the different types of modulation schemes.
  • Ans. 

    Modulation is the process of varying a carrier signal to transmit information. Different types include AM, FM, PM, and QAM.

    • Modulation is used to transfer information by varying a high-frequency carrier signal.

    • Amplitude Modulation (AM) varies the amplitude of the carrier signal to encode information.

    • Frequency Modulation (FM) varies the frequency of the carrier signal to encode information.

    • Phase Modulation (PM) varies th...

  • Answered by AI
Round 2 - Technical 

(3 Questions)

  • Q1. What is S-matrix?
  • Ans. 

    S-matrix is a mathematical representation used in RF engineering to describe the relationship between input and output signals of a linear system.

    • S-matrix is also known as scattering matrix.

    • It is used to analyze the behavior of RF circuits and systems.

    • S-matrix elements represent the complex amplitudes of the incident and reflected waves at each port of a network.

    • S11 parameter represents the reflection coefficient at po...

  • Answered by AI
  • Q2. Where can you different types analog modulation schemes?
  • Ans. 

    Different types of analog modulation schemes can be found in various communication systems.

    • Analog modulation schemes are used in radio broadcasting, television transmission, and wireless communication.

    • Some common types of analog modulation schemes include amplitude modulation (AM), frequency modulation (FM), and phase modulation (PM).

    • AM is used in AM radio broadcasting, where the amplitude of the carrier signal is vari...

  • Answered by AI
  • Q3. What is VSWR and what is the need for it?
  • Ans. 

    VSWR stands for Voltage Standing Wave Ratio. It is a measure of how well a transmission line is matched to the impedance of the connected devices.

    • VSWR is a ratio of the maximum voltage to the minimum voltage along a transmission line.

    • It is used to measure the efficiency of power transfer and the impedance matching in RF systems.

    • A lower VSWR indicates better impedance matching and less power loss.

    • VSWR is important in RF...

  • Answered by AI
Round 3 - Technical 

(4 Questions)

  • Q1. What is a standing wave in a transmission line?
  • Ans. 

    A standing wave in a transmission line is a wave that appears to be stationary, resulting from the interference of two waves traveling in opposite directions.

    • A standing wave is formed when a wave traveling in one direction reflects back upon encountering an impedance mismatch in the transmission line.

    • The interference between the incident and reflected waves creates regions of constructive and destructive interference, ...

  • Answered by AI
  • Q2. Draw waveforms of Amplitude and FM/PM modulation scheme?
  • Ans. 

    Amplitude modulation (AM) and frequency modulation (FM) waveforms can be represented graphically.

    • AM modulation: The amplitude of the carrier signal is varied in proportion to the amplitude of the modulating signal.

    • FM modulation: The frequency of the carrier signal is varied in proportion to the amplitude of the modulating signal.

    • Waveforms can be drawn to show the variations in amplitude or frequency over time.

    • AM wavefo...

  • Answered by AI
  • Q3. What is the propagation delay in Electromagnetic wave?
  • Ans. 

    Propagation delay is the time it takes for an electromagnetic wave to travel from one point to another.

    • Propagation delay is determined by the distance between the two points and the speed of light.

    • It is the time it takes for the wave to propagate through a medium or free space.

    • Propagation delay can be calculated using the formula: delay = distance / speed of light.

    • For example, if the distance between two points is 100 ...

  • Answered by AI
  • Q4. Draw Transmitter and Receiver for a communication system.
  • Ans. 

    A transmitter and receiver are essential components of a communication system.

    • Transmitter converts information into a suitable form for transmission.

    • Receiver receives the transmitted signal and converts it back into the original form.

    • Transmitter typically includes a modulator, power amplifier, and antenna.

    • Receiver typically includes an antenna, demodulator, and audio or video output.

    • Example: In a radio communication sy...

  • Answered by AI

Interview Preparation Tips

Topics to prepare for Qualcomm RF Engineer interview:
  • Communication Systems
  • Transmission Line
  • Signals and Systems
Interview preparation tips for other job seekers - It was for an entry level job and got to know about it from an acquaintance.

First Round was to judge engineering aptitude, i was asked general things and about my project. The interviewer was was very nice and friendly. A good experience overall.
Second round was a technical round questions from my projects and subjects like EMT and Communication systems was asked in great details. Friendly Interviewer, even though it was an interview I learnt a great deal. Again a very good experience.
Third Round was manager round. Again a technical round. Question asked from EMT and communication systems. The interviewer was not friendly at all, I felt like I was sitting in a college viva. The interviewer started every question with "Do you have any Idea about--" which I felt was berating and rude at least. While explaining things the interviewer interrupted me again and again and kept asking questions related to it which intimidated me. In the previous rounds of interview if I answered incorrectly or partially correctly the interviewer would ask me to rethink and give me sometime for the same. Here the interviewer would answer with "hmmm" again and again and move to the next question. Overall questions asked were from complete basics but I didn't have a good interview experience at all.

Reading previous interview experience for freshers, I was told I'd be asked for my preferred subject but that was not the case so an interviewee should be prepared for the worst.

RF Engineer Interview Questions & Answers

user image Anonymous

posted on 23 Feb 2024

Interview experience
3
Average
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(1 Question)

  • Q1. Based on resume
Round 2 - One-on-one 

(1 Question)

  • Q1. About projects in resume
Round 3 - HR 

(1 Question)

  • Q1. General questions on background

RF Engineer Interview Questions Asked at Other Companies

asked in Qualcomm
Q1. What is modulation, and what are the different types of modulatio ... read more
asked in Qualcomm
Q2. Where can you different types analog modulation schemes?
asked in Qualcomm
Q3. What is the propagation delay in Electromagnetic wave?
asked in Qualcomm
Q4. What is a standing wave in a transmission line?
asked in Qualcomm
Q5. What is VSWR and what is the need for it?

RF Engineer Jobs at Qualcomm

View all

Interview questions from similar companies

Interview experience
4
Good
Difficulty level
-
Process Duration
-
Result
-

I applied via Company Website and was interviewed before May 2023. There was 1 interview round.

Round 1 - Aptitude Test 

Questions related to digital and Analog electronics were asked

Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
More than 8 weeks
Result
Selected Selected

I applied via Approached by Company and was interviewed in Feb 2024. There were 3 interview rounds.

Round 1 - Technical 

(2 Questions)

  • Q1. What were your previous projects that you have worked on
  • Ans. 

    I have worked on projects related to developing software for autonomous vehicles and implementing machine learning algorithms for predictive maintenance.

    • Developed software for autonomous vehicles to improve navigation and obstacle avoidance

    • Implemented machine learning algorithms for predictive maintenance in manufacturing plants

    • Collaborated with cross-functional teams to integrate new technologies into existing systems

  • Answered by AI
  • Q2. What all your technical skills and stacks that you have previously used for your projects
  • Ans. 

    I have experience with Java, Python, SQL, AWS, Docker, and Kubernetes in my previous projects.

    • Java

    • Python

    • SQL

    • AWS

    • Docker

    • Kubernetes

  • Answered by AI
Round 2 - Technical 

(2 Questions)

  • Q1. What is docker and why do we use it for containerising applications
  • Ans. 

    Docker is a platform for developing, shipping, and running applications in containers.

    • Docker allows applications to be isolated in containers, making them portable and easy to deploy across different environments.

    • Containers share the host OS kernel but run as isolated processes, providing lightweight and efficient virtualization.

    • Docker simplifies the process of packaging applications and their dependencies, ensuring co...

  • Answered by AI
  • Q2. What is database normalisation and how your project benefited from it in the past
  • Ans. 

    Database normalization is the process of organizing data in a database to reduce redundancy and improve data integrity.

    • Database normalization involves breaking down data into smaller, more manageable tables and defining relationships between them.

    • It helps in reducing data redundancy, improving data integrity, and making the database more efficient.

    • For example, in a project I worked on, we normalized the database by spl...

  • Answered by AI
Round 3 - Technical 

(2 Questions)

  • Q1. What has been your experience with challenging projects
  • Ans. 

    I have extensive experience working on challenging projects in various industries.

    • Led a team in developing a complex software solution for a major client

    • Managed a project with tight deadlines and limited resources

    • Implemented innovative solutions to overcome technical obstacles

    • Collaborated with cross-functional teams to deliver successful outcomes

  • Answered by AI
  • Q2. How would you approach learning about new domain and technologies with a different background
  • Ans. 

    I would approach learning about new domain and technologies with a different background by leveraging my existing skills, seeking out resources, and collaborating with experts in the field.

    • Identify key concepts and terminology in the new domain

    • Seek out online courses, tutorials, and books to gain foundational knowledge

    • Collaborate with colleagues or mentors who have experience in the new domain

    • Experiment with hands-on p...

  • Answered by AI

Interview Preparation Tips

Topics to prepare for Micron Technology Senior Engineer interview:
  • IT Projects
  • Python
  • Reactjs
  • Django
  • Databases
Interview preparation tips for other job seekers - Prepare well on your skillsets and domain knowledge to defend your skills in front of the interviewer well

Skills evaluated in this interview

Interview experience
3
Average
Difficulty level
Hard
Process Duration
2-4 weeks
Result
Selected Selected

I applied via Referral and was interviewed before Jul 2022. There were 3 interview rounds.

Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Keep your resume crisp and to the point. A recruiter looks at your resume for an average of 6 seconds, make sure to leave the best impression.
View all tips
Round 2 - Technical 

(1 Question)

  • Q1. Questions about Thermal basics. JD also about melting point temperatures
Round 3 - HR 

(1 Question)

  • Q1. Salary negotiations and joining date details
Interview experience
4
Good
Difficulty level
Moderate
Process Duration
2-4 weeks
Result
Selected Selected

I applied via Company Website and was interviewed before Jan 2023. There were 2 interview rounds.

Round 1 - Coding Test 

Simple Python Coding questions.

Round 2 - One-on-one 

(1 Question)

  • Q1. Logical questions on Memory allocation.

Interview Preparation Tips

Interview preparation tips for other job seekers - Look at problems asked to solve with a open mind, it will really help answering the questions.
Interview experience
3
Average
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(2 Questions)

  • Q1. Last Project details
  • Ans. 

    Designed and implemented a cloud-based data analytics platform for real-time monitoring of network performance.

    • Led a team of 5 engineers in developing the platform using AWS services such as EC2, S3, and Lambda functions

    • Integrated data visualization tools like Tableau for generating reports and dashboards

    • Implemented machine learning algorithms for predictive analysis of network outages

    • Collaborated with stakeholders to ...

  • Answered by AI
  • Q2. SV -UVM questions
Interview experience
2
Poor
Difficulty level
-
Process Duration
-
Result
-
Round 1 - One-on-one 

(2 Questions)

  • Q1. Manpower Handling
  • Q2. Critical process

Interview Preparation Tips

Interview preparation tips for other job seekers - Refferals persons only selected
Interview experience
3
Average
Difficulty level
Easy
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Referral and was interviewed in Dec 2024. There was 1 interview round.

Round 1 - Technical 

(2 Questions)

  • Q1. What is your knowledge of the anodizing process?
  • Ans. 

    Anodizing is an electrochemical process that converts the metal surface into a decorative, durable, corrosion-resistant finish.

    • Anodizing involves immersing the metal in an electrolyte solution and passing an electric current through it.

    • The process creates a protective oxide layer on the metal surface, improving its resistance to corrosion and wear.

    • Different types of anodizing include sulfuric acid anodizing, chromic ac...

  • Answered by AI
  • Q2. Plc programming and scada knowledge
Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Walk-in and was interviewed before Dec 2022. There were 3 interview rounds.

Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Don’t add your photo or details such as gender, age, and address in your resume. These details do not add any value.
View all tips
Round 2 - Technical 

(1 Question)

  • Q1. 7Qc,8D,Six Sigma
Round 3 - HR 

(1 Question)

  • Q1. Salary details and previous company details

Qualcomm Interview FAQs

How many rounds are there in Qualcomm RF Engineer interview?
Qualcomm interview process usually has 3 rounds. The most common rounds in the Qualcomm interview process are Technical, HR and One-on-one Round.
How to prepare for Qualcomm RF Engineer interview?
Go through your CV in detail and study all the technologies mentioned in your CV. Prepare at least two technologies or languages in depth if you are appearing for a technical interview at Qualcomm. The most common topics and skills that interviewers at Qualcomm expect are Apache, Bootstrap, CAD, CLLE and Configuration management.
What are the top questions asked in Qualcomm RF Engineer interview?

Some of the top questions asked at the Qualcomm RF Engineer interview -

  1. What is modulation, and what are the different types of modulation schem...read more
  2. Where can you different types analog modulation schem...read more
  3. What is the propagation delay in Electromagnetic wa...read more

Tell us how to improve this page.

Qualcomm RF Engineer Interview Process

based on 2 interviews

Interview experience

3
  
Average
View more

Interview Questions from Similar Companies

Intel Interview Questions
4.2
 • 214 Interviews
Tata Electronics Interview Questions
4.0
 • 146 Interviews
Texas Instruments Interview Questions
4.1
 • 120 Interviews
Nvidia Interview Questions
3.7
 • 102 Interviews
Synopsys Interview Questions
3.9
 • 88 Interviews
Molex Interview Questions
3.9
 • 53 Interviews
View all
Qualcomm RF Engineer Salary
based on 41 salaries
₹4.2 L/yr - ₹17.4 L/yr
145% more than the average RF Engineer Salary in India
View more details

Qualcomm RF Engineer Reviews and Ratings

based on 3 reviews

3.9/5

Rating in categories

4.2

Skill development

3.4

Work-life balance

4.7

Salary

3.2

Job security

3.1

Company culture

2.5

Promotions

2.9

Work satisfaction

Explore 3 Reviews and Ratings
RF Engineer, Senior

Chennai

4-6 Yrs

Not Disclosed

Explore more jobs
Senior Engineer
1.2k salaries
unlock blur

₹0 L/yr - ₹0 L/yr

Software Engineer
959 salaries
unlock blur

₹0 L/yr - ₹0 L/yr

Engineer
888 salaries
unlock blur

₹0 L/yr - ₹0 L/yr

Senior Software Engineer
611 salaries
unlock blur

₹0 L/yr - ₹0 L/yr

Senior Leader Engineer
431 salaries
unlock blur

₹0 L/yr - ₹0 L/yr

Explore more salaries
Compare Qualcomm with

Nvidia

3.7
Compare

Intel

4.2
Compare

Mercedes-Benz Research and Development India

3.8
Compare

Broadcom

3.4
Compare
Did you find this page helpful?
Yes No
write
Share an Interview