Array antennas consisting of linear and loop elements
Abstract
Various types of elements have been proposed for array antennas. However, the effect of each array element on the overall antenna characteristics has not yet been clarified. In this paper, three different types of array antennas consisting of linear elements, circular loops and two-point open loops, are analyzed. These structures allow the surface-wave propagation. When the array length is less than two wavelengths, the difference in the directivities among these antennas is about 1.5 dB. For the array longer than two wavelengths, this difference becomes small. As for the input impedance and its frequency response, no major differences are seen among these three antennas.
- Publication:
-
Electronics Communications of Japan
- Pub Date:
- May 1976
- Bibcode:
- 1976JElCo..59...61T
- Keywords:
-
- Antenna Arrays;
- Antenna Radiation Patterns;
- Dipole Antennas;
- Directivity;
- Electrical Impedance;
- Loop Antennas;
- Antenna Design;
- Current Distribution;
- Electromagnetic Surface Waves;
- Frequency Response;
- Communications and Radar