Antenna LP
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Transcript of Antenna LP
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8/3/2019 Antenna LP
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RVS FACULTY OF ENGINEERING
KANNAMPALAYAM, COIMBATORE 641402
LESSON PLANAcademic Year 2011-2012
Department : ECE
Semester and Branch: 5th /ECE Faculty: REDDY BABU.S
Subject Name/Code : ANTENNA AND WAVE PAROPAGATION/
Lecture
No.Topic
Teaching
Aids
Unit I
RADIATION PROPERTIES1 Concept of vector potential- Modification for time varying-
retarded case-Black Board
2 Fields associated with Hertzian dipole ---do---3 Power radiated and radiation resistance of currentelement
---do---
4,5 Radiation from half-wave dipole and quarter-wave monopoleantennas
---do---
6,7 Radiation intensity- Directive gain- Directivity- Power gain-Beam Width- Band Width-Gain
---do---
8 Quarter wave monopole-Half-wave dipole and folded dipole ---do---
9 Reciprocity principle- Effective length and Effective area ---do---
10 Relation between gain effective length and radiation resistance. ---do---
11,12 Tutorial ---do---
Unit II ANTENNA ARRAYS ---do---1,2 Expression for electric field from two, three and N element
arrays---do---
3,4 linear arrays: Broad-side array and End-Fire array ---do---
5,6 Method of pattern multiplication ---do---
7,8 Binomial array- Horizontal and Vertical Antennas above theground plane
---do---
9 Phased arrays, Frequency-Scanning arrays ---do---
10 Adaptive arrays and Smart antennas. ---do---
11,12 Tutorial ---do---
Unit III ANTENNA TYPES ---do---
1,2 Loop Antennas: Radiation from small loop and its radiationresistance
---do---
3 Radiation from a loop with circumference equal to awavelength-Helical antenna
---do---
4 Normal mode and axial mode operation ---do---
5,6 Yagi uda Antenna- Log periodic antenna- Phased array-rhombic antenna- Horn antenna
---do---
7,8 Reflector antennas and their feed systems- Micro stripantenna-Selection of antenna based on frequency of operation
---do---
9,10 Antennas for special applications: Antenna for terrestrial mobile ---do---
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communication systems, GPR, Embedded antennas, UWB,Plasma antenna
11,12 Tutorial ---do---
Unit IV WAVE PROPAGATION ---do---
1,2 Ground wave propagation: Attenuation characteristics forground wave propagation- Calculation of field strength at a
distance---do---
3,4 Space wave propagation: Reflection from ground for vertically
and horizontally polarized waves ---do---5 Reflection characteristics of earth- Resultant of direct and
reflected ray at the receiver- Duct propagation---do---
6,7 Sky wave propagation: Structure of the ionosphere- Effectivedielectric constant of ionized region
---do---
8 Mechanism of refraction- Refractive index- Critical frequency-Skip distance
---do---
9 Effect of earths magnetic field- Attenuation factor forionosphere propagation
---do---
10 Maximum usable frequency- Fading and Diversity reception. ---do---
11,12 Tutorial ---do---
Unit V ANTENNA AND IONOSPHERIC MEASUREMENTS ---do---
1,2 Antenna Measurements: Reciprocity in Antennameasurements
---do---
3,4 Near-field and Far field - Measurements ranges - Measurementof different Antenna parameters
---do---
5,6 Directional pattern, Gain, Phase, Polarization, Impedance,Efficiency
---do---
7,8 Ionosphere Measurements: Measurement of verticalIncidence
---do---
9 Group Velocity and Group Delay ---do---
10 Relation between oblique and vertical Incidence transmission ---do---11,12 Tutorial ---do---
Date: Signature of Faculty Name:
Date: Signature of HOD Name:
