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794 (0,072s)

Výsledek výzkumu

Numerical analysis of microwave planar structures usign TD-MoM

We describe an analysis of planar structures in the time domain. Examples illustrate basic properties of modeling by the time domain method of moments....

JA - Elektronika a optoelektronika, elektrotechnika

  • 2003
  • D
Výsledek výzkumu

Multi-objective Synthesis of Dual-band Circularly Polarized Antennas by Particle Swarm Optimization Method

-Domain Method of Moments (TD-MoM) is used. In the first part, the numerical analysis of randomly oriented wire antennas by the explicit form of TD-MoM is described......

JA - Elektronika a optoelektronika, elektrotechnika

  • 2005
  • D
Výsledek výzkumu

Analysis of Multi-Wire Antennas with Time-Domain Method of Moments (TD-MoM)

The paper deals with the wideband analysis of multi-wire antennas by the time-domain method of moments (TD-MoM). Two geometrical multi-wire structures are described: two linear parallel dipoles two-meter long with distance one meter...

JA - Elektronika a optoelektronika, elektrotechnika

  • 2004
  • D
Výsledek výzkumu

Multiobjective analysis of wire antennas with TD-MoM

The paper is oriented to a novel approach to the synthesis of non-conventional wire antennas exhibiting wideband or multi-band behavior. The synthesis is based on the time-domain moment method analysis of wire antennas and on their multi-objective ge...

JA - Elektronika a optoelektronika, elektrotechnika

  • 2004
  • D
Výsledek výzkumu

Time-Domain Modeling of Microwave Structures. Research report of the grant project 102/01/0571 of the Czech Grant Agency

The report oresents results obtained during the second year of the solution of the grant project.

JA - Elektronika a optoelektronika, elektrotechnika

  • 2002
  • Vx
Výsledek výzkumu

Proporties of Explicit and Implicit Form Solution by TD-EFIE

The time-domain electric field integral equations (EFIE) are solved by the method of moments. The RWG functions are used as basis functions. The explicit and implicit forms are derived from TD-EFIE. Their properties are demonstrated on the e...

JA - Elektronika a optoelektronika, elektrotechnika

  • 2004
  • D
Výsledek výzkumu

Multiobjective Synthesis of wideband antennas with genetic algorithms using TD-MoM

The paper is oriented to a novel approach to the synthesis of non-conventional wire antennas exhibiting wideband or multi-band behavior. The synthesis is based on the time-domain moment method analysis of wire antennas and on their multi-objective ge...

JA - Elektronika a optoelektronika, elektrotechnika

  • 2004
  • D
Výsledek výzkumu

Analysis of wire dipole in frequency and time domain

The paper deals with analyzing wire dipole by moment method in two domains - in frequency one and in time one. Analysis in frequency domain consists in computing of antenna parameters on discrete frequencies. Analysis in time domain consists in excit...

JA - Elektronika a optoelektronika, elektrotechnika

  • 2003
  • D
Výsledek výzkumu

Broadband Analysis of Multi-Wire Antennas with Time-Domain Method of Moments

The paper deals with the wideband analysis of multi-wire antennas by the time-domain method of moments (TD-MoM). Two geometrical multi-wire structures are described: two linear parallel dipoles two-meter long with distance one meter...

JA - Elektronika a optoelektronika, elektrotechnika

  • 2004
  • D
Výsledek výzkumu

Analysis of microwave antennas in frequency and time domain

Today, more and more data are needed to be trasmitted. Therefore, more advanced radio communication systems have to be developed. Since the amount of transmitted data is related to the bandwidth, transmission is shifted to microwave frequencies....

JA - Elektronika a optoelektronika, elektrotechnika

  • 2003
  • D
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