Antennas Questions and Answers

Antennas Interview Questions and Answers

Our 1000+ Antennas questions and answers focuses on all areas of Antennas subject covering 100+ topics in Antennas. These topics are chosen from a collection of most authoritative and best reference books on Antennas. One should spend 1 hour daily for 2-3 months to learn and assimilate Antennas comprehensively. This way of systematic learning will prepare anyone easily towards Antennas interviews, online tests, examinations and certifications.


– 1000+ Multiple Choice Questions & Answers in Antennas with explanations
– Every MCQ set focuses on a specific topic in Antennas Subject

Who should Practice these Antennas Questions?
– Anyone wishing to sharpen their knowledge of Antennas Subject
– Anyone preparing for aptitude test in Antennas
– Anyone preparing for interviews (campus/off-campus interviews, walk-in interview and company interviews)
– Anyone preparing for entrance examinations and other competitive examinations
– All – Experienced, Freshers and Students


Here’s list of Questions & Answers on Antennas Subject covering 100+ topics:

1. Questions & Answers on Antenna Parameters

The section contains questions and answers on antenna parameters basics and characteristics, radiation pattern, isotropic radiators, directive and power gain, directivity, effective aperture, radiation resistance, antenna bandwidth and friis transmission equation.

Antenna Parameters Basics
Antenna Characteristics
Radiation Pattern
Isotropic Radiators
Directive Gain
Power Gain
Effective Aperture
Radiation Resistance
Antenna Bandwidth
Friis Transmission Equation

2. Questions on Antenna Parameters – II

The section contains questions on antenna noise temperature, half power beam width and oscillating dipole radiation.

Antenna Noise Temperature
Power Radiation From Half Wave Dipole
Radiation from Oscillating Dipole

3. Questions & Answers on Antenna Beam Width & Input Impedance

The section contains questions and answers on half power and first null beam width, transmission and receiving mode.

Half Power Beam Width
First Null Beam Width
Transmission Mode
Receiving Mode

4. Questions on Radiation, Baluns & Polarization

The section contains questions on basic maxwell equations, hertzian dipole, baluns and its types, choke balun types, polarization types and mismatch.

Basic Maxwell Equations
Hertzian Dipole
Types of Baluns
Types of Polarization
Polarization Mismatch
Types of Choke Balun

5. Questions & Answers on Folded Dipole & Yagi – Uda Antenna

The section contains questions and answers on folded dipole antenna types and modifications, yagi-uda antenna and its construction.

Different Types of Folded Dipole Antenna
Yagi – Uda Antenna
Construction of Yagi – Uda
Modification of Folded Dipole Antenna

6. Questions on Aperture Antenna

The section contains questions on rectangular aperture radiation, uniform aperture field and beamwidths.

Radiation from Rectangular Aperture
Uniform Aperture Field

7. Questions & Answers on Horn Antenna

The section contains questions and answers on horn antenna principles, types and design. This section also contains questions on horn antenna advantages and application.

Horn Antenna Principles
Horn Antenna Types
Horn Antenna Design – 1
Horn Antenna Design – 2
Advantages and Application of Horn Antenna

8. Questions on Reflector Antenna

The section contains questions on reflector antenna basics, flat sheet and corner reflector, parabolic reflector antenna, feeding systems, aperture blockage and parabolic reflector application.

Reflector Antenna Basics
Flat Sheet Reflector
Corner Reflector
Parabolic Reflector Antenna
Feeding Systems
Aperture Blockage
Application of Parabolic Reflector

9. Questions & Answers on Slot & Microstrip Antenna

The section contains questions and answers on slot antenna types, patch types and feed methods of microstrip antenna, microstrip antenna application, slot antenna various shpes and application, antenna analysis numerical tools, rectangular microstrip antenna and radiation pattern of microstrip antenna.

Types of Slot Antennas
Types of Patch in Microstrip Antenna
Feed Methods of Microstrip Antenna
Application of Microstrip Antenna
Numerical Tool for Antenna Analysis
Various Shapes of Slot Antenna
Application of Slot Antenna
Rectangular Microstrip Antenna
Radiation Pattern of Microstrip Antenna

10. Questions on Antenna Array

The section contains questions on antenna array basics, n-element linear array, antenna array factor, pattern multiplications, radiation pattern for 4 & 8 isotropic elements, n-isotropic sources array, broadside and fire end arrays.

Introduction to Antenna Array
N-element Linear Array
Antenna Array Factor
Pattern Multiplications
Radiation Pattern for 4-Isotropic Elements
Radiation Pattern of 8-Isotropic Elements
Broadside Array
Array of N-Isotropic Sources
End Fire array

11. Questions & Answers on Phased, Adaptive and Binomial Arrays

The section contains questions and answers on phased array basics, fed types, adaptive array, antenna synthesis, dolph pattern method, chebyshev and binomial arrays, chebyshev polynomials fundamentals and properties.

Phased Array Basics
Different Types of Fed
Adaptive Array
Antenna Synthesis
Chebyshev Arrays
Chebyshev Polynomials Fundamentals
Chebyshev Polynomials Properties
Dolph Pattern Method
Binomial Array

12. Questions on Frequency Independent Antenna

The section contains questions on rumsey principle, helical antenna, radiation and its modes, log periodic antenna and its basics, lpda working and designs, spiral and reconfigurable antenna.

Rumsey Principle
Helical Antenna
Modes of Radiation
Normal Mode of Radiation
Log Periodic Antenna
Introduction to Log Periodic Antenna
Working of LPDA
Design of LPDA
Spiral Antenna
Reconfigurable Antenna

13. Questions & Answers on Modern Antennas & Antenna Measurements

The section contains questions and answers on antenna ranges, measurement gain, standing wave ratio method, spectrum analyzer, near and far fields, active antenna, dielectric resonator antenna, radiation pattern, polarization and directivity measurement.

Antenna Ranges
Measurement of Gain
Standing Wave Ratio Method
Spectrum Analyzer
Near Field and Far Field
Active Antenna
Dielectric Resonator Antenna
Measurement of Radiation Pattern
Measurement of Polarization
Measurement of Directivity

14. Questions on Radio Wave Propagation

The sections covers questions on propagation modes, atmosphere, troposphere and ionosphere structures, ground wave propagation, field strength and parallel propagation reflection factors.

Modes of Propagation
Structure of Atmosphere
Structure of Troposphere
Structure of Ionosphere
Ground Wave Propagation
Field strength
Reflection Factor for Parallel Propagation

15. Questions & Answers on Space Wave Propagation

The section contains questions and answers on sight distance line, duct propagation, refractivity, tropospheric scatter and tropospheric propagation field strength.

Line of Sight Distance
Duct Propagation
Tropospheric Scatter
Field Strength of Tropospheric Propagation

16. Questions on Virtual Height, Critical Frequency and Muf

The section contains questions on virtual height, critical frequency, maximum usable frequency and multi hop propagation.

Virtual Height
Critical Frequency
Maximum Usable Frequency
Multi Hop Propagation

17. Questions & Answers on Smart Antennas

The section contains questions and answers on smart antennas benefits and drawbacks.

Smart Antennas Benefits Smart Antennas Drawbacks
If you would like to learn Antennas thoroughly, you should attempt to work on the complete set of questions and answers mentioned above. It will immensely help anyone trying to crack an exam or an interview.

Here’s the list of Best Reference Books in Antennas.

Wish you the best in your endeavor to learn and master Antennas!

Manish Bhojasia, a technology veteran with 20+ years @ Cisco & Wipro, is Founder and CTO at Sanfoundry. He is Linux Kernel Developer & SAN Architect and is passionate about competency developments in these areas. He lives in Bangalore and delivers focused training sessions to IT professionals in Linux Kernel, Linux Debugging, Linux Device Drivers, Linux Networking, Linux Storage, Advanced C Programming, SAN Storage Technologies, SCSI Internals & Storage Protocols such as iSCSI & Fiber Channel. Stay connected with him @ LinkedIn