论文信息 - Co $_{2}$Z Hexaferrite T-DMB Antenna for Mobile Phone Applications

Co $_{2}$Z Hexaferrite T-DMB Antenna for Mobile Phone Applications

We fabricated 0.029 lambda miniaturized Co2Z hexaferrite terrestrial digital multimedia broadcasting (T-DMB) antenna. T-DMB antenna was fabricated by winding 12-turn Cu tape around the Co2Z rectangular block. Antenna was mounted on the ground substrate with connection of coaxial feeding line. Fabricated Co2Z antenna showed 196.2 MHz of center frequency, -6.55 dB of 3-D average gain and 22.13% of radiation efficiency at 195 MHz. Average gain of Co2Z antenna is found to be greater than -17.4 dB in the range of 174-216 MHz .

[1] Sang-Hoon Park,et al. New Synthetic Route of Z-Type (Ba $_{3}$ Co $_{2}$ Fe $_{24}$ O $_{41}$ ) Hexaferrite Particles , 2009 .

[2] Jaejin Lee,et al. Low loss Z-type barium ferrite (Co2Z) for terrestrial digital multimedia broadcasting antenna application , 2009 .

[3] Y. Hong,et al. New Synthetic Route of Single-phase Z-type (Ba₃CO₂Fe₂₄O₄₁) Hexaferrite Particles , 2008 .

[4] Yang-Ki Hong,et al. Effect of Ni–Zn ferrite on bandwidth and radiation efficiency of embedded antenna for mobile phone , 2008 .

[5] Seok Bae,et al. Effect of Ferrite Substrates on Antenna Miniaturization , 2008 .

[6] Seok Bae,et al. A small meander VHF & UHF antenna by magneto-dielectric materials , 2005, 2005 Asia-Pacific Microwave Conference Proceedings.

[7] K. Sarabandi,et al. Magneto-dielectrics in electromagnetics: concept and applications , 2004, IEEE Transactions on Antennas and Propagation.

[8] L. J. Chu. Physical Limitations of Omni‐Directional Antennas , 1948 .