Live Roundups Editor's Desk Insights Executive Ops Weather About 🔍
Home › Environment › The Gains, Effective Areas and Equivalent Areas of a...
Environment

The Gains, Effective Areas and Equivalent Areas of a Multiport Antenna Array

arXiv Physics Wednesday 03 June 2026, 04:00 UTC By Fr\'ed\'eric Broyd\'e, Evelyne Clavelier 1 min read
Key Points

Announce Type: new Abstract: We review the definitions of 22 parameters of a multiport antenna array operating in a specified direction: 4 excitation-dependent parameters for emission, 10 excitation-independent parameters for emission, and 8 parameters for reception. We concisely set forth their main properties. As examples, we compute and discuss these parameters in the cases of two simple 6-port antenna arrays made of parallel dipole antennas.

arXiv:2606.03324v1 Announce Type: new Abstract: We review the definitions of 22 parameters of a multiport antenna array operating in a specified direction: 4 excitation-dependent parameters for emission, 10 excitation-independent parameters for emission, and 8 parameters for reception. We concisely set forth their main properties. As examples, we compute and discuss these parameters in the cases of two simple 6-port antenna arrays made of parallel dipole antennas. We investigate the effect of a change of variable describing the excitation during emission. This allows us to find an ``invariance under a change of excitation variable'', and to compare some of the parameters with the ones used by other authors. We study passive linear embeddings of the MAA ports, to reveal an ``invariance under an invertible lossless linear embedding''.
MAA (ORG)
Originally published by arXiv Physics Read original →

Related Stories

Girl swept away and still missing off the Southern California coast

A mother and two children got caught in powerful ocean swells off the Southern California coast before witnesses jumped into the water to save two of the swimmers on Tuesday night — with one child still missing, officials said. Witnesses called 911 at about 7:30 p.m. on Monday reporting “multiple swimmers in distress” near Treasure Island Beach, according to statement from Laguna Beach Marine Safety. The “mother and her two children were swept into the ocean by powerful water conditions...

NBC News 21m ago

'Worrying' pollution in Cotswolds river - volunteers

Volunteers record high phosphate and nitrate levels and call on the Environment Agency to investigate.

BBC Science 1h ago

Solar power hits new milestones despite Trump’s effort to boost coal over clean energy

Solar power hits new milestones despite Trump’s effort to boost coal over clean energy The findings, supported by a report from the Solar Energy Industries Association and Wood Mackenzie, highlight solar’s continued growth and coal’s ongoing decline - Bookmark Solar power has reached unprecedented milestones in the United States, emerging as the leading source of new electricity generation, even as Donald Trump’s administration actively promotes coal. New data reveals that solar energy is...

The Independent World 1h ago

Hundreds of new moons are revealing our solar system's violent history

In the far reaches of the solar system, the planetary neighbourhood seems quiet. Beyond Jupiter, the sun is no longer a blazing disc, but a cold, white lamp. The planets are separated by gulfs of darkness.

New Scientist 3h ago