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This work introduces a bandwidth broadening technique for full-wave dipole (FWD) antennas and arrays, which are realized by introducing gaps in both two arms of the dipole. Several parameters are analyzed to illustrate the change of input impedance of the proposed FWD and the moving of resonant modes. The proposed FWD array antenna shows advantages in terms of impedance bandwidth, 3-dB gain bandwidth...
Paul Mayes understood of the benefits of series array antennas. He also understood some of the challenges. Series feeding is fundamental to broadband antennas like the Log-Periodic Dipole Array (LPDA), and Mayes developed innovative approaches to reduce the size and cost of this type of antenna. Log-periodic antenna arrays of monopoles and slots had challenges not present in dipole versions, and he...
Advantages of the diamond dipole antenna as an active antenna are presented. Such an antenna is like an inverted bow-tie antenna, but the former has some advantages over the ordinary bow-tie antenna. It is shown that the diamond dipole antenna may be an effective element of a new antenna array for low-frequency radio astronomy as well as a communication antenna.
A miniaturized planar log-periodic dipole array (LPDA) antenna is presented. Antenna miniaturization is accomplished by replacing the uniform dipole elements of the conventional LPDA antenna with elements that possess variable-impedance profiles governed by a truncated Fourier series. Conventional and miniaturized LPDA antennas exhibiting 7 dB end-fire gains are designed to operate over the frequency...
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