Wideband Magnetoelectric Dipole Antenna

[Admin 2753]

In this POST, we investigate a wideband magnetoelectric dipole antennA miniaturized by folding. In the proposed design, a folded L‐shaped electric dipole

is used instead of the conventional half‐wavelength horizontal electric dipole, and a pair of vertically folded shorted patches act as a magnetic dipole, producing a

miniaturized radiator. Furthermore, a small‐size U‐shaped reflector replaces the traditional large‐size planar reflector, resulting in a decrease in the low end of the

frequency band, while the high end of the frequency band remains almost unchanged. A better impedance matching is also obtained over the entire operating

frequency band. Ultimately, a miniaturized overall structure and a wide bandwidthare obtained simultaneously. The overall size of the proposed antenna is only

0.25λ×0.25λ×0.12λLLL(whereλL is the longest operating wavelength),

which is 82% smaller than the size of the original design, but the proposed antenna can still obtain a large bandwidth of 120% (1–4GHz) for VSWR<2.

Furthermore,stable radiation patterns are realized with an average gain of 5 dBi within theoperating frequency band

 

Our friend Clanon previously posted the following...

 

"the Feed strips don't make contact , the energy is induced by proximity probe"

 

 

https://www.researchgate.net/publication/360807630_Miniaturization_of_a_wideband_magnetoelectric_dipole_antenna_by_folding

[clanon 301]

I guess the proximity fed probe (L Probe) helps to widen the bandwidth (since there's more modes and room for the energy to couple than STRAIGHT CONTACT , which would have only ONE mode)

[clanon 301]

[clanon 301]

didn't like the results for one Bow tie...the other design with closed box must be better (harder to draw and build) Here's the PAPER with dimensions

09100804.pdf

[clanon 301]

[Admin 2753]

,,okay,but there is still something wrong with the H1 and H3 dimensions....!!!