Miniature devices based on electromagnetic crystals
DOI:
https://doi.org/10.20535/RADAP.2013.54.120-125Keywords:
electromagnetic crystal, electromagneticcrystal inhomogeneity, 3D-simulation, microstrip narrow-band filterAbstract
Introduction. Crystal-like structures with specific spectral characteristics are widely investigated for signal processing devices. Brief review of electromagnetic crystals (EC) and EC-inhomogeneities is presented. Miniature EC. Few methods to miniaturize EC are presented. A new method for reducing the size of electromagnetic crystals (EC) due to formation of the wave trajectory in the form of interconnected u-shaped loops, covering inhomogeneities is proposed and tested. Narrow-band EC-filter. Miniature EC narrow-band filter based on the scheme of Fabry-Perot cavity is designed and constructed. The experimental and calculated values of the resonant frequency, bandwidth at –3 dB level and insertion loss are respectively 3.74 GHz and 3.83 GHz, 194 MHz and 100 MHz, –3 dB and –1.7 dB. In comparison with straight resonator area structure size is reduced by 1.5 times. Measured and simulated results are presented. The features of 3D-simulation of the noval EC are presented. Conclusions. Two EC-inhomogeneities with special wave trajectory permit to design a miniature narrow-band filters.References
Література
Hong J. S. Microstrip Filters for RF/Microwave Applications / Hong J. S., Lancaster M. J. – NY. : Wiley, 2001 – 457 р.
Назарько А. И. Высокоизбирательный электромагнитный кристалл / Назарько А. И., Нелин Е. А., Попсуй В. И. Тимофеева Ю. Ф. // ЖТФ. – 2010. – Т. 80. Вып. 4. – С. 138–139.
Назарько А. И. Электромагнитные кристаллы на основе низкомных неоднородностей / Назарько А. И. / Назарько А. И., Нелин Е. А., Попсуй В. И. Тимофеева Ю. Ф. // ЖТФ. – 2011. – Т. 81. Вып. 5. – С. 142–143.
Назарько А. И. Двухфазный электромагнитный кристалл / Назарько А. И., Нелин Е. А., Попсуй В. И., Тимофеева Ю. Ф. // ПЖТФ – 2011. – Т. 37, Вып. 4. – С. 81–86.
References
Hong J. S. Microstrip Filters for RF/Microwave Applications / Hong J. S., Lancaster M. J. – NY. : Wiley, 2001 – 457 р.
Nazarko A. I. High-selectivity electromagnetic crystal / Nazarko A. I., Nelin E. A., Popsui V. I., Timofeeva Yu. F // Technical Physics. – 2010. – Vol. 55. – Issue 4. – Р. 569–570.
Nazarko A. I. Electromagnetic crystals based on low-impedance inhomogeneities / Nazarko A. I., Nelin E. A., Popsui V. I., Timofeeva Yu. F // Technical Physics. – 2011. – Vol. 56. – Issue 5. – Р. 728–730.
Nazarko A. I. Two-phase electromagnetic crystal / Nazarko A. I., Nelin E. A., Popsui V. I., Timofeeva Yu. F. // Technical Physics Letters. – 2011. – Vol. 37. – Issue 2. – Р. 185 – 187.
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