helical antenna मीनिंग इन हिंदी

उदाहरण वाक्य

1. In most cases, helical antennas are mounted over a ground plane.
2. The prominent helical antenna received telecommands from a ground station.
3. Helical antennas can operate in one of two principal modes  normal mode or axial mode.
4. A common form of normal-mode helical antenna is the " rubber ducky antenna " used in portable radios.
5. A "'helical antenna "'is an antenna consisting of a conducting wire wound in the form of a helix.
6. One application that has used heatshrink in large quantities since the early 1970s is the covering of fibreglass helical antennas, used extensively for 27 MHz CB Radio.
7. In the " axial mode " or " end-fire " helical antenna, the dimensions of the helix are comparable to a wavelength.
8. In radio transmission, circular spacecraft communications, or where the polarisation of the signal may change, so end-fire helical antennas are frequently used for these applications.
9. For television broadcasting specialized vertical radiators that are mostly modifications of the slot antenna or helical antenna are used : the slotted cylinder, zig-zag, and panel antennas.
10. There are many ways to make a high-gain antenna-the most common are parabolic antennas, helical antennas, yagi antennas, and phased arrays of smaller antennas of any kind.