全部文献期刊学位论文会议报纸专利标准年鉴图书|学者科研项目
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作者:Zhiyuan Zhao , Jiang Chen , Lin Yang ...
来源:[J].Frequenz(IF 0.168), 2014, Vol.68 (9-10), pp.427-432De Gruyter
摘要:...2 and h = 1 mm, with 1-dB fractional bandwidth of 11% ± 0.6% (absolute bandwidth 97 MHz to 187.2 MHz). Its insertion loss is varying from 4.58 dB to 2.86 dB and return loss is better than 10 dB within the tuning frequency range. The measured third-order inter-modulation inte...
作者:Lei Xu , Wenquan Che , Liang Geng ...
来源:[J].Microwave and Optical Technology Letters(IF 0.585), 2007, Vol.49 (6), pp.1459-1463Wiley
摘要:... The theoretical analyses have indicated that these two frequencies have much dependence on the width of SIW and the length of the coupling slot, the fractional bandwidth of the double‐layer SIW structures can be controllable. Agreement between the simulation data and t...
作者:Jia , Feng , Huang ...
来源:[J].International Journal of Electronics(IF 0.509), 2014, Vol.101 (7), pp.983-993Taylor & Francis
摘要:In this paper, a tunable filter with constant fractional bandwidth is designed and fabricated on ε r = 2.2, h = 0.508 mm duroid substrates. A new mixed electrical and magnetic coupling scheme is introduced by this structure to achieve an overall constant coupling c...
作者:Garima Bharti , Kumud Ranjan Jha , G. Singh ...
来源:[J].Wireless Personal Communications(IF 0.428), 2015, Vol.85 (3), pp.1411-1428Springer
摘要:Abstract(#br)In this paper, an azimuthally periodic wedge-shaped circular aperture frequency selective surface (FSS) is discussed, which provides the dual polarized and angular stable frequency response with significantly more fractional bandwidth (FBW) up to 50° angle-of-inci...
作者:Ami Iqubal , P. Abdulla
来源:[J].AEUE - International Journal of Electronics and Communications(IF 0.551), 2020Elsevier
摘要:...68 GHz with a fractional bandwidth of 97.57 %. The fabrication process is carried out using MITS 11 Autolab fabrication machine with the low cost FR4 substrate and verified the performance improvement of the developed filter.
作者:Sharma , Awasthi , Singh
来源:[J].International Journal of Electronics(IF 0.509), 2019, Vol.106 (7), pp.945-959Taylor & Francis
摘要:... Antenna is fabricated and characterised on silicon for imaging and wireless applications having a fractional bandwidth of 133%. The antenna offers gain, radiation efficiency and group delay between 3.26 and 8.00 dBi, 84% and 92% and ≤±1.0 ns, respectively, for the entire bandwidth...
作者:Keyur Mahant , Hiren Mewada
来源:[J].Journal of Electromagnetic Waves and Applications(IF 2.965), 2019, Vol.33 (13), pp.1718-1725Taylor & Francis
摘要:... The measured 3-dB fractional bandwidth (FBW) is 1.475% at the center frequency of 12.2 GHz.
作者:Satyabrat Hota , Sudeep Baudha , B. B. Mangaraj ...
来源:[J].Journal of Electromagnetic Waves and Applications(IF 2.965), 2020, Vol.34 (1), pp.116-128Taylor & Francis
摘要:...7–11 GHz which accounts for the fractional bandwidth of 121.1%. The overall volume of the structure has a compact dimension of 20 × 20 × 1.6 mm3. The gain and antenna efficiency of the structure are 3.34 dB and 79.8%, respectively. The structure exhibits stable radiations...
作者:V. I. Fedyanovich
来源:[J].Journal of Communications Technology and Electronics(IF 0.33), 2017, Vol.62 (5), pp.466-474Springer
摘要:... The fractional bandwidth of the antenna is expressed via the improved limits of the fractional bandwidth of linearly polarized antennas. The limits of the fractional bandwidth of circularly polarized antennas are found. It is established that the maximum fractional bandwidth ...

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