| 摘要 |
PURPOSE:To energize intermediate-wave antennas for multifrequency efficiently, by providing a circuit which shows infinite impedance to the output wavelength of the transmitter itself and also shows zero impedance to the output wavelength of other transmitters. CONSTITUTION:A power lambda1 in wavelength output from a transmitter T1 is not absorbed in a circuit Q1 2 but fed to a power feeding conductor F1 from the energizing point A because the circuit Q1 2 shows infinite impedance to the wave lambda1 in wavelength, and also it is given to an iron tower T and other feeding lines F2. On the other hand, the circuit Q1 2 of the power feeding conductor F2 shows zero impedance to the wave lambda1 in wavelength, then the lower end of the conductor F2 is grounded to the wave in wavelength lambda1. Thus, the wave lambda1 in wavelength does not cause interference through flowing to the transmitter T2. Similarly, the wave lambda2 in wavelength does not cause interference through flowing to the transmitter T1 fed from the lower end A2 of the conductor F2. Thus, the antenna in common use for two waves can make energizing operation for two waves lambda1 and lambda2 in wavelength. |
