Wave Propagation on a Transmission Line

Wave Propagation on a Transmission Line

I. Introduction

We detect signal that transmit from Wi-Fi Router by Antenna connected to Spectrum Analyzer. We put these two Antenna in the steel. To receive the power gain, we use Spectrum Analyzer. In this experiment we wan to check power gain wave propagation on a transmission line and compare between Wi-Fi antenna use guide line and normal Wi-Fi antenna. 

II. Objective

In this experiment learn about:

• Learn to build transmission line (steel)

• Learn of waveguide type antenna by transmission line

• Learn the power gain that Antenna of Spectrum Analyzer detect form Wi-fi Router

• To conclusion the data in wave propagation on a transmission line

III. Equipment 

In this experiment, we use equipment such as below:

• Spectrum Analyzer (22GHz)

• Wi-fi Router (Signal generator)

• Steel (1m length)

• BNC connector (2x)

• Cable

IV. Methodology

Built the steel by showing the bellowing figure:

Then we connect the BNC connector to the hole of steel and make sure the length of antenna is accurate like below description:

Frequency: 2.4 GHz
𝜆=C/f = (3. (10^8))/(2.4.(10^9)) = 12.5 cm
𝜆/4 = 3.125 cm; is the length of antenna

 

V. Measurement

 

Bandwidth;
Start: 2.35GHz
Stop: 2.53 GHz

VI. Result

After make measurement we get result table in figure below:

VII. Conclusion

We could build the wave transmission line successfully and we could gain data from experiment.





Royal University of Phnom Penh
Faculty of Engineering
Dep. Telecommunication and Electronic

Instructor: Dr. Bae Dae Hwan
Date Measurement: 14 February 2018,
Place of Measurement: Room C001 Building C in RUPP Zoon.