MICROWAVE AND MIC LABORATORY
RF/Microwave laboratory supportsUG and PG laboratory courses.Also PG, MS by research and PhD projects on the design, theory, and prototyping of antennas, filters and other MIC components. The laboratory includes facilities for the real timefabrication of experimental prototypes as well as software resources for simulation, design and analysis.
Courses Offered:
|
S.No. |
Graduate Programme |
Courses |
Semester |
|
1. |
UG |
EC409 Microwave Laboratory |
VII |
|
2. |
PG |
EC607Microwave and MIC Laboratory |
I |
List of Experiments:
|
S. No |
Experiments (EC409) |
|
1. |
Measurement of Impedance- Direct and Indirect method |
|
2. |
Study of wave propagation |
|
3. |
Study of Directional Coupler |
|
4. |
Study of E plane, H plane and Magic-Tee |
|
5. |
V-I characteristics of Gunn diode |
|
6. |
Study of Isolator and Circulator |
|
7. |
Frequency and Wavelength Measurement |
|
8. |
Radiation Pattern of Horn antenna |
|
S. No |
Experiments (EC607) |
|
1. |
Characteristics of Gunn diode, Frequency and wavelength measurement |
|
2. |
Characteristics of Reflex Klystron |
|
3. |
Characteristics of Multi-hole directional coupler |
|
4. |
Characteristics of Circulator and Isolator |
|
5. |
Micro strip antenna design using HFSS |
|
6. |
Characteristics of Horn antenna |
|
7. |
Characteristics of power divider |
|
8. |
Measurement of transmission loss of 50W micro strip line |
|
9. |
Characteristics of Low pass filter |
|
10. |
Experiment using CST microwave studio |
| 11. |
Microwave CAD -Design and analysis of Planar Antenna |
Microwave Laboratory Equipments:
Software / Tools:
|
S.No |
Software/Tool |
Quantity/ No. of Licenses |
Cost of the Tool (Lacs) |
|
1. |
High Frequency Structure Simulator (HFSS) |
05 Lic |
12.5 |
|
2. |
Computer Simulation Technology (CST) |
10 Lic |
8 |
|
3. |
Advanced Design System (ADS) |
|
|
|
4. |
COMSOL |
|
|
|
5. |
IE3D |
|
|
Equipments- Hardware:
|
Sl. No |
Name of the Equipment |
Qty |
Cost in lakh of rupees |
|
Microwave Technologies Inc |
|||
|
|
Microwave Test Bench for Gunn Diode |
1 |
3,96,136 |
|
|
Microwave Test Bench for Frequency and Wavelength Measurement |
1 |
|
|
|
Microwave Test Bench for Directional Coupler |
1 |
|
|
|
Microwave Test Bench for Characteristics of Reflex |
1 |
|
|
|
Microwave Test Bench for E-plane, H-plane and Magic Tee |
1 |
|
|
|
Microwave Test Bench for Scattering parameter of Circulator and Isolator |
1 |
|
|
|
Digital VSWR Meter |
8 |
|
|
|
Gunn Power Supply |
3 |
|
|
Scientific Instruments Company (SICO) Limited (Ghaziabad) |
|||
|
|
Klystron Power Supply (X-Band) |
2 |
1,97,817 |
|
|
Klystron Mount with tube |
4 |
|
|
|
Gunn Power Supply |
2 |
|
|
|
Gunn Oscillator |
2 |
|
|
|
PIN Modulator |
2 |
|
|
|
Isolator |
6 |
|
|
|
Frequency Meter |
1 |
|
|
|
Variable Attenuator |
3 |
|
|
|
SS Tuner |
2 |
|
|
|
Slotted Section |
1 |
|
|
|
Detector Mount |
5 |
|
|
|
VSWR Meter |
3 |
|
|
|
Waveguide Stand |
5 |
|
|
|
BNC Cable |
10 |
|
|
|
DSO (Salicon Nano Technology Private Limited (3) & GW Instek (7)) |
10 |
3,08,222 |
|
Veer Microwaves |
|||
|
|
Bench Passive Components (Slide Screw Tuner, Detector, Movable Short, Isolator, Termination Short, Horn Antenna, Waveguide Rotary Joint (I-type), Waveguide E-bend, Waveguide E-plane Tee, Waveguide H-plane Tee, Waveguide EH Tee, Waveguide Matched H Tee, Solid State VSWR Meter, Twist, Frequency Meter, Directional Coupler (3 dB, 6 dB, 10 dB, 20 dB and 40 dB), Attenuator, Tunable Probe, Slotted Section, 3-port Circulator, Waveguide stand, Waveguide in Brass rod, Tripod Stand for Horn Antenna) |
5 |
3,31,603.25 |
|
S.No |
Equipment |
Quantity |
Cost of Equipment’s (Lacs) |
|
1. |
Vector Network Analyzer |
1 |
7 |
|
2. |
Antenna Prototyping Machine |
1 |
10 |
|
3. |
Microwave X-Band educational Test Bench |
03 |
2.40 |
|
4. |
SICO Test Bench |
02 |
1.60 |
|
5. |
MIC Kit |
03 |
4.10 |
|
6. |
Spectrum Analyzer HP 8593 E |
01 |
6.0 |
Research Works:
1. Metamaterial inspired structures for antenna design and Specific Absorption Rate reduction
In recent years, EM metamaterials play a very major role in the rapid evolution of wireless communication systems. SRRs’ finds many applications in microwave devices like filters, couplers and antennas. SRRs are a class of these metamaterials; tend to exhibit negative permeability, upon EM wave intervention perpendicular to its axis.It aids in withstanding the demand for compact, low profile and multi-band antennas. SRRs are also used as superstrates for patch antennas to reduce Specific Absorption Rate (SAR). The stop bands of SRR correspond to either negative permeability or negative permittivity. These stop bands absorb antenna’s radiation, thereby reducing the SAR
2. FDTD Analysis.
The numerical approximation of Maxwell’s equations, computational electromagnetics (CEM), has emerged as a crucial enabling technology for radio-frequency, Microwave, and wireless engineering. Three most popular “full-wave” methods are Finite Difference Time Domain method (FDTD), Method of Moments (MoM) and Finite Element Method (FEM).FDTD, a differential type time domain approach is a versatile method requiring almost no preprocessing of Maxwell’s equations to arrive at governing equations. The FDTD method has seen robust growth in research activity in the last decade due to its applications in almost all areas, including communications, computing, and bio-medicine. One-dimensional FDTD analysis is applied to study basic phenomenon like reflection at an interface between two media, determination of propagation constant in lossy medium and design of material absorbers. The pulse undergoes many reflections in to-and-fro manner between the discontinuities and a SteadyState is reached after a few nanoseconds. Two-dimensional FDTD is used to analyze guiding structures called waveguides where the transverse modes (TE and TM) are propagated along the guiding structures. Three dimensional FDTD is used to analyze real-world problems.
3. Substrate Integrated Waveguide based Antennas
Substrate Integrated Waveguide (SIW) has emerged as a new concept for millimeter-wave (mm wave) integrated circuits and systems for the next generation due to their manifold advantages. A waveguide based on SIW is considered as a dielectric filled rectangular waveguide whose metallic walls are formed by cylindrical via arrays with diameter d and separation p between vias (pitch). SIW yields high performance from very compact planar circuits.
4. Metamaterial antennas for bio-medical applications
Metamaterials can have their electromagnetic properties altered to something beyond what can be found in nature. Hence metamaterials have been attracted great interest among microwave engineers and physicists, due to showing exotic electromagnetic properties at microwave frequencies. A split-ring resonator (SRR) is one of the metamaterial particles that offer negative permeability, while complementary split-ring resonator (CSRR), the duality of SRR, interacts with the electric field and introduces negative permittivity, which are most commonly used in biomedical sensors. It is well known that SRRs are resonant structures, and consequently, it is possible to employ these resonances as well as radiating modes. SRRs are very compact and it is easy to design them with dual band characteristic.
Research Scholars:
|
S.No. |
Graduate Programme |
Current Scholars |
Passed Out |
|
1. |
Ph.D. |
8 |
7 |
|
2. |
MS by Research |
2 |
2 |
|
3. |
PG |
4 |
- |
Awards:
|
Ph.D. Student Visited Abroad |
Duration |
Area of Research and Foreign Supervisor |
|
M. Ramaraj |
|
Biomedical Microwave Imaging |
Publications:
|
S.No. |
Publications |
No. of Publications |
|
1. |
Conferences |
281 |
|
2. |
Journals |
79 |
|
3. |
Books |
-- |
Lab in charge: Dr.R. Pandeeswari
Contact Details:
Name: Dr.R. Pandeeswari,
Designation: Assistant Professor,
Mail Id: rpands@nitt.edu
Phone Number: 0431-2503318
