1. What is Power Received By Antenna?

Power Received By Antenna refers to the amount of electromagnetic energy that is captured and made available for further processing or use by the receiving equipment. It is a fundamental parameter in wireless communication systems.

2. How Does the Calculator Work?

The calculator uses the Power Received By Antenna formula:

Where:

• \( P_r \) — Power Received By Antenna (W)
• \( S \) — Power Density Of Antenna (W/m³)
• \( A_e \) — Effective Area Antenna (m²)

Explanation: The formula calculates the received power by multiplying the power density at the antenna by the effective area of the antenna that captures the electromagnetic radiation.

3. Importance of Power Received Calculation

Details: Calculating the power received by an antenna is crucial for designing and optimizing wireless communication systems, determining signal strength, and ensuring proper system performance in various applications including telecommunications, radar systems, and satellite communications.

4. Using the Calculator

Tips: Enter Power Density Of Antenna in W/m³ and Effective Area Antenna in m². All values must be valid positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What factors affect the power received by an antenna?
A: The power received depends on the power density of the incoming wave, the effective area of the antenna, antenna efficiency, polarization matching, and environmental factors.

Q2: How is effective antenna area related to antenna gain?
A: The effective area is related to antenna gain through the formula: \( A_e = \frac{G \lambda^2}{4\pi} \), where G is the antenna gain and λ is the wavelength.

Q3: What are typical values for power received by antennas?
A: Received power values vary widely depending on the application, from picowatts in long-distance communications to milliwatts in short-range systems.

Q4: How does antenna orientation affect received power?
A: Proper antenna orientation ensures maximum power transfer through polarization matching and optimal alignment with the incoming wave direction.

Q5: Can this formula be used for both transmitting and receiving antennas?
A: While the formula is primarily for receiving antennas, the reciprocity theorem allows similar principles to be applied to transmitting antennas in many cases.