AAI Syllabus 2025 - Check AAI Complete Syllabus PDF

Topics

Subtopics

Basic Electronics, Power Electronics and Devices

Basic of semiconductors; Diode/ Transistor basic and characteristics; Diodes for different uses; Junction & Field Effect Transistor (BJTs, JFETs, MOSFETS); Transistor amplifiers of different types, oscillators and other circuits; Basic of Integrated Circuits (ICs); Bipolar, MOS and CMOS ICs; Basic of linear ICs, operational amplifiers and their applications-linear/non-linear; Optical sources/detectors; Basic of Opto electronics and its applications. Power switching devices like SCRs, triggering circuits; phase control rectifiers; bridge converters- fully controlled and half controlled; Uninterruptible Power Supply (UPS), Battery Banks and backups.

Electronic Measurements and Instrumentation

Principle of Measurement, accuracy, precision and standards; Analog and Digital system for measurement, measuring instruments for different applications; Static/dynamic characteristics of measurement systems, errors, statistical analysis and curve fitting; Data acquisition system basics. Electronic measuring instruments and their principles of working, characteristics, applications. Analog and digital instruments – Voltmeters, Oscilloscopes, Power Meters, Frequency counters, Spectrum/Signal Analyzers, Network Analyzers. Phase, time and frequency measurement; Transducers; Electronic measurements of non-electrical quantities like temperature, pressure, humidity etc. Calibration Requirement for Test Equipment.

Electromagnetic and Network Theory

Analysis of electrostatic and Magneto static fields; Laplace’s and Poisson’s equations; Boundary value problems and their solution; Maxwell’s equitation; application of wave propagation in bounded and unbounded media; Transmission lines-basic theory; Smith’s chart, Impedance matching, transformation, S-Parameter, VSWR/standing waves, basics of waveguides and resonators. Network analysis techniques; Network theorems, transient response, steady state sinusoidal response; Network graphs and their applications in network analysis; two port networks. Basics of multiplexers, counters/registers/memories/microprocessors, design and applications.

Analog and Digital

Small signal equivalent circuits of diodes, BJTS and FETs; Diode circuits for different uses; Biasing & stability of BJT & JEFT amplifier circuits; Analysis/design/class of amplifier single/multi-stage; Feedback & uses; Active filters, timers, multipliers, wave shaping, A/D-D/A converters; Boolean Algebra & uses; Logic gates, Digital IC families, Combinatorial/sequential circuits; Basic of multiplexers, counters/registers/memories/microprocessors, design & applications.

Analog and Digital Communication Systems

Random signals, noise, probability theory, information theory; Analog versus digital communication & applications; Frequency bands allocation; Wave propagation methods and expected range both day and night; Line of sight communication range calculation, different types of modulations; HF and VHF Communication System- the principle of operation, installation practices and procedures.

Computer Organization and Architecture

Basic architecture, CPU, Microprocessors and Microcontrollers, basics, interrupts, DMA, instruction sets, Interfacing; I/O organization, memory organization, peripheral devices, trends; Hardware /software issues; data representation & Programming; Operating systems-basic, processes, characteristics, commends and applications; Memory management, virtual memory, file systems, protection and security; Databases, different types, characteristics and design; Transactions and concurrency control; Elements of programming languages, Typical examples, Artificial intelligence, cyber security and firewalls.

Antenna Theory and Engineering

Fundamental concepts-Physical concepts of Radiation; Antenna parameters, radiation pattern, Antenna gain, directivity, effective aperture, antenna measurements, effects of ground on antenna; Aperture and Reflector Antennas, Broadband Antennas-Log periodic, Folded dipole, Yagi Antennas, UHF and Microwave antennas, Frequency independent antennas Antenna Arrays.

Radar and Navigational Systems

1. 
   Radar: Basic Radar: Radar Block Diagram; Radar Frequencies; Applications of Radar; Klystron, Magnetron, TWT; Circulator, RADAR equation; Detection of Signals in Noise; Receiver Noise and the Signal to Noise Ratio; Probabilities of Detection and False Alarm; Radar Cross Section of Targets; Pulse Doppler Radar. Monopulse Tracking, Radar clutter-Surface Clutter; Sea Clutter; Weather Clutter. RADAR Antenna; Antenna Parameter; Antenna Radiation Pattern; Aperture illumination; Reflector Antennas; Electronically Steered Phased Arrays Antennas. Radar Receiver; Receiver Noise Figure. Principles and operation of-Primary Surveillance Radar, Secondary Surveillance Radar, Surface Movement Radar and Multilateration system

2. Navigational system- Hyperbolic Systems of Navigation; Radio-Direction Finding, The loop Antenna; An Aural-Null Direction Finder; Automatic Direction Finders; Radio Compass, Non Directional Beacon; Doppler Navigation- Doppler effect, Doppler VHF Omni Range; Distance Measuring Equipment (DME); Tactical Air Navigation (TACAN); Instrument Landing System. Satellite Navigations systems- GNSS, GPS principle of operation, principle of GPS receivers and applications.

Topics (Subject)

Marks Distribution

Basic Arithmetic

25

Basic Science

25

English/Grammar

25

General Knowledge

25

TOTAL

100

Topics(Subjects)

Marks Weightage(%)

Technical Subjects

70%

General Knowledge

30%

General Intelligence

General Aptitude

English