Research & Facilities

Research Areas

Radio Frequency Circuit Design

  • Multi-band/broadband power amplifier (PA) design for wireless communication.
  • RF CMOS PA and Low noise amplifier (LNA) design for radio frequency integrated circuits (RFIC) applications.
  • RF GaN MMIC power amplifier and design for C and X-band.
  • RF HEMT modeling for embedded PA design.
  • RF switch mode PA design with embedded model and waveform engineering: Harmonic Terminated, switch mode Class-F and F-1, Broad-band Class J.
  • Multi-band Broadband Doherty Power Amplifier Design.
  • Multi-band/broad-band RF passive circuit design and matching networks.
  • Concurrent and Reconfigurable RF circuits with RF (Micro-Electro-Mechanical Systems) MEMS
  • High integration circuits in LTCC.

Signal Processing in Radio System Design

  • Modeling and compensation in multiple-input and multiple-output (MIMO) systems for hardware impairments.
  • Equalization and Diversity Techniques in MIMO while compensating transceiver hardware imperfections and non-linearity.
  • Digital compensation for non-linearity and imperfections in Multi-band transceiver system.
  • Concurrent linearization in transmitter for LTE Carrier aggregation.
  • Embedded design and field-programmable gate array (FPGA) implementation for digital predistortion and feed-forward cancellation of harmonics and inter-modulation products.
  • Low-cost SDR peripherals development for tactical radios and wireless application.
  • Position estimation and RF channel modeling.
  • Numerical Optimization techniques.
  • Low-cost SDR peripherals development for tactical radios and wireless application.
  • Position estimation and RF channel modeling.
  • Numerical Optimization techniques.

Current Research Topics

  • Software Defined Solution for Hardware Imperfections in MIMO Transmission.
  • Signal quality enhancement using digital techniques for six-port based modulators.
  • Delta/Sigma Modulation technique for high efficiency power amplification.
  • Multiple RF Impairments mitigation in OFDM receiver Systems.
  • FPGA implementation of digital predistortion schemes for nonlinearity compensation in transmitters.
  • Hybrid (Rf/Digital) Pre-Distortion Linearizer Design for 13.75-14.5 GHz High Power Travelling Wave Tube Amplifier.
  • Broadband GaN based Doherty power amplifier design.
  • Digital Predistortion of multi-band power amplifier for software defined radio.
  • Multi-Level Delta Sigma Modulator for All Digital Transmitter.
  • Lineariser Development for 4G/5G signal transmission using Software Defined Radios.

Facilities

The above research is carried out in the department of Electronics and Communication Engineering IIT Roorkee. The details of individual labs are given on department website. The typical facilities used by IRDSP in the department of ECE, IIT Roorkee are:

 

  • Spectrum analyzer up-to 7 GHz.
  • Vector signal analyzer up-to 6 GHz.
  • Vector Network analyzer up-to 26 GHz & 67 GHz.
  • Signal Generator up-to 20 GHz.
  • DSP boards
  • WARP v3 Kit
  • WARP v2 MIMO Kit

 

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