To achieve good radiation performance, the antenna needs to be located such that it couples with the dominant current mode of the ground plane. Antenna locations are proposed using the characteristic mode analysis of the ground planes. The measured bandwidths of the anten...
The loop antenna that is oriented vertically is known as a vertical loop antenna. These antennas are very effective while capturing ground wave signals. These types of antennas are frequently used for direction finding & short-range communication. Vertical Type Radiation Pattern Theradiation pattern of...
摘要: PROBLEM TO BE SOLVED: To provide a receiving antenna device which can be easily installed and fixed in a comparatively narrow space, such as the balcony of a residence or the like, to receive radio waves, is small in size, lightweight, and easily handled....
The antenna 4b performs the information transfer to the ground loop provided at the side of the track 2B in the same positional relation. Accordingly, a pair of the antenna and the ground loop does not receive easily the signal disturbance from another pair of the antenna and the ground loop...
Connection of the transformer is easy. Select two of the six wires, based on the known impedance of the antenna, or through experimentation. The antenna wire and ground wire are connected to these two wires. To provide strain relief, they should be ...
We also simulated the FCC requirement for a test site, specifically an open field with a ground reflection, varying antenna height, and a 3m horizontal distance between the DUT and the receive antenna. Figure 1. 3m reference measurement. FCC compliance testing seeks to ensure that the field ...
its axis parallel to the ground. This is fine for the reception of LF and MF transmissions, which are vertically polarised, but most HF transmissions are horizontally polarised.” Huh, I thought, “I wonder this would have any bearing on how I use my MFJ 1886 loop antenna?
The effect of ground plane on the performance of a square loop CPW-fed printed antenna - Ooi, Selvan - 2010P.C. Ooi and K.T. Selvan, "The effect of ground plane on the performance of a square loop CPW-fed printed antenna," Progress In Electromagnetics Research Letters, Vol. 19, pp...
MLA-30 Magnetic Loop Antenna Review and Comparison by David Day (N1DAY) Inthis review David compares the MLA-30 against a 30-ft ground loop and a Wellbrook ALA1530-LF. His results show that while the loop is capable of receiving the same signals that the two comparison loops can, the ...
A VHF television receiving antenna arrangement includes a cabinet having a loop of electrically conductive material disposed on its top, back and sides, preferrably on the inside surfaces thereof. A g