Planar Log-Periodic Monopole Array Antennas With Reverse-Firing
| Autor: | Tan Xiaoyuan, Jin Xiuhua, Xiaodong Huang, Saili Chen |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Physics
business.industry 020208 electrical & electronic engineering Bandwidth (signal processing) Magnetic monopole 020206 networking & telecommunications 02 engineering and technology Radiation Optics Phase reversal Planar 0202 electrical engineering electronic engineering information engineering Standing wave ratio Wideband business Electrical impedance Computer Science::Information Theory |
| Zdroj: | 2019 International Conference on Microwave and Millimeter Wave Technology (ICMMT). |
| Popis: | Two categories of planar log-periodic monopole array antennas are presented, which exhibit wideband directional radiation with reverse-firing. Compared with the conventional log-periodic monopole antennas, the proposed antennas have lower profile and/or wider operation bandwidth. Through realizing the phase reversal on the feedline (the first category) or placing inverters between the monopole elements and the feedline (the second category), the energy is beamed end fire in the direction of the shorter elements where the antennas are fed. For verification, the planar log-periodic monopole array antennas with eighteen printed monopole elements are designed and simulated. In simulations, the operation (impedance) band of those antennas have reached from 1.7 to 5.8 GHz ( $\text{VSWR} ) at most frequencies in both categories, whereas the gain of the second category is up to 7.9 dBi. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|