Phasor Alternatives to Friis’ Transmission Equation
| Autor: | Ondrej Franek |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Coupling
Power gain Radiowave propagation Computer science 010401 analytical chemistry Phasor 020206 networking & telecommunications Ultrawideband antennas 02 engineering and technology Topology 01 natural sciences 0104 chemical sciences Power (physics) Superposition principle Transmission (telecommunications) Friis transmission equation Frequency domain 0202 electrical engineering electronic engineering information engineering Antenna theory Receiving antennas Electrical and Electronic Engineering |
| Zdroj: | Franek, O 2018, ' Phasor Alternatives to Friis’ Transmission Equation ', IEEE Antennas and Wireless Propagation Letters, vol. 17, no. 1, 8118146, pp. 90-93 . https://doi.org/10.1109/LAWP.2017.2776523 |
| ISSN: | 1548-5757 1536-1225 |
| DOI: | 10.1109/lawp.2017.2776523 |
| Popis: | Two alternatives to Friis’ transmission equation in terms of phasor voltage waves are presented. In one formulation antennas are characterized by the complex effective length vectors. An additional form introducing field gain, that serves effectively as a phasor counterpart to the power gain, is proposed. Both forms show the same degree of symmetry and modularity as the original Friis’ equation, but thanks to using phasors instead of power quantities they allow for superposition of fields or voltages. Although the new transmission equations are formulated in frequency domain, they also constitute a simple and intuitive way to calculate time domain responses of antennas, such as in ultrawideband (UWB) systems. Application of the equations is demonstrated on a simple example of coupling between two non-aligned dipoles in the vicinity of a conductive reflector. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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