Abstract
Medium-wave radio broadcasting in Japan has been disturbed by jamming from neighboring countries. To deal with this problem, consideration should be given to the use of numerous low-power broadcasting stations, each with a rather narrow service area. A helical loaded monopole antenna is recommended for use in such stations. A field experiment was conducted using a model one-tenth the size of the actual antenna. The antenna impedance was almost identical to the theoretical and the apparent efficiency was 32 percent at an antenna height of 0.1 wavelength.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Electronics and Communications in Japan (Part I: Communications)
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
