1. Gain is inversely proportional to the antenna's acceptance angle . 2. This feed in incidence angle is the ( half ) acceptance angle : 3. The acceptance angle of the device is 2 " ? ". 4. Different acceptance angles may then be determined for parallel rays or for sunlight. 5. Skyline's acceptance angle is 1.3?of azimuth and ?60?of elevation. 6. Because it is a medium concentration system, the Skyline X14 System has a wide acceptance angle . 7. In the general case, the acceptance angle in one direction may be different from the other. 8. Where \ theta is the half-angle of the acceptance angle ( of the larger aperture ). 9. The higher the CAP, the closer the concentrator is to the maximum possible in concentration and acceptance angle . 10. Note that when this definition is used, the connection between the NA and the acceptance angle of the fiber becomes only an approximation.