The fundamental limits of the power efficiency of an antenna are explored. The antenna is confined in a sphere and all of the currents are assumed to run in a material with a conductivity that is a function of the radial coordinate. The analysis is based on the expansion of the electromagnetic fields in terms of vector spherical harmonics. Explicit expressions for the limits of efficiency are derived for different types of antenna
In this paper the Spherical Wave Expansion (SWE) is used to represent an antenna radiation pattern. ...
Abstract—Determining absolute transmitting efficiency has been a difficult task since the inception ...
Design of small antennas is challenging because fundamental physics limits the performance. Physical...
The fundamental limits of the power efficiency of an antenna are explored. The antenna is confined i...
The fundamental limits of the gain and efficiency of an antenna are explored. The antenna is confine...
The fundamental limits of the gain, efficiency and Q-value of an antenna put severe restrictions on ...
In many cases it is desired to have both high capacity and small antennas in wireless communication ...
Small volume, finite conductivity, and high frequencies are major imperatives in the design of commu...
In many cases it is desired to have both high capacity and small antennas in wireless communication ...
Abstract—In many cases it is desired to have both high capacity and small antennas in wireless commu...
<p>The material and dimensions of the antenna are major limiting factors of the antenna performance ...
Small volume, finite conductivity, and high frequencies are major imperatives in the design of commu...
The dissipated power and the directivity of antennas in a homogeneous, lossy medium are systematical...
The dissipated power and the directivity of antennas in a homogeneous, lossy medium are systematical...
This paper derives physical limitations on the interactions of antennas exciting TM or TE modes (but...
In this paper the Spherical Wave Expansion (SWE) is used to represent an antenna radiation pattern. ...
Abstract—Determining absolute transmitting efficiency has been a difficult task since the inception ...
Design of small antennas is challenging because fundamental physics limits the performance. Physical...
The fundamental limits of the power efficiency of an antenna are explored. The antenna is confined i...
The fundamental limits of the gain and efficiency of an antenna are explored. The antenna is confine...
The fundamental limits of the gain, efficiency and Q-value of an antenna put severe restrictions on ...
In many cases it is desired to have both high capacity and small antennas in wireless communication ...
Small volume, finite conductivity, and high frequencies are major imperatives in the design of commu...
In many cases it is desired to have both high capacity and small antennas in wireless communication ...
Abstract—In many cases it is desired to have both high capacity and small antennas in wireless commu...
<p>The material and dimensions of the antenna are major limiting factors of the antenna performance ...
Small volume, finite conductivity, and high frequencies are major imperatives in the design of commu...
The dissipated power and the directivity of antennas in a homogeneous, lossy medium are systematical...
The dissipated power and the directivity of antennas in a homogeneous, lossy medium are systematical...
This paper derives physical limitations on the interactions of antennas exciting TM or TE modes (but...
In this paper the Spherical Wave Expansion (SWE) is used to represent an antenna radiation pattern. ...
Abstract—Determining absolute transmitting efficiency has been a difficult task since the inception ...
Design of small antennas is challenging because fundamental physics limits the performance. Physical...
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