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Aligned facing each other in boresight direction

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QUESTION

a) Two directional antennas are aligned facing each other in the boresight direction at 1800 MHz in free-space conditions, as shown in Figure 4.26. Antenna A is a parabolic dish with 65% radiation efficiency, and antenna B is a horn antenna with 15 dBi. 754m Determine

i. The directivity for antenna A, in decibels.

ii. The power received at antenna B, given that antenna A has an input power of 1 W. State any assumptions made.

iii. The distance at which antenna B is considered in the far-field if this antenna has a diagonal length in its mouth of 10 cm.

iv. If antenna B is used as a transmit antenna, what is the power received at antenna A given an input power of 1 W? Explain your answer. This study source was downloaded by

b) A new cellular system will be deployed in a rural area to provide coverage to a village of around 3000 people. Most houses are built from wood, and the town hall often congregates a significant number of people during special events, for which cellular coverage is desired. This town hall is made of concrete with a wall penetration fact in access of 12db. i. Make suitable recommendations for the types of antennas used inside the town hall and within the village. ii. Will antenna down tilting benefit the desired coverage? Explain why?

Reference no: EM133459939

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