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Hello, I’m currently studying antenna design and have a few questions about antenna gain. Antenna Gain: I understand that gain refers to the antenna’s ability to convert input power into radiated power, but some sources also mention “directionality” and “efficiency” in the context of gain. How do these factors affect gain? Can they be separated, or are they interrelated? Gain and Radiation Pattern: Does gain relate closely to the antenna's radiation pattern (e.g., omnidirectional or directional)? For a directional antenna, how do you calculate its gain? Should I focus on a specific direction? Gain and Distance: Does gain vary with distance? Is there a distance at which gain reaches its maximum? How can I calculate the effective range for maximum gain? Practical Applications: In real-world applications, how does gain impact signal quality and communication range? Can adjusting gain optimize performance in certain environments? Thanks for your help, and I look forward to hearing your thoughts and experiences!