Double-folded Half Wavelength Printed Quadrifilar Helix Antenna with Feeding Network

机译：具有馈电网络的双倍半波长印刷四线螺旋天线

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A method to miniaturise printed quadrifilar helix antenna (PQHA) by reducing its axial length is presented. The axial length reduction is achieved by folding the helical element of the PQHA several times depending on targeted size reduction. As for the feeding network, a compact cascaded power divider network with folded arms is designed to excite each of the antenna helical arm. Comparisons between conventional and double-folded (DF) PQHAs’ reflection coefficient and gain pattern show that this method can achieve nearly 70% of axial length reduction without significantly compromising on its impedance bandwidth and efficiency.

机译：提出了一种通过减小打印的四线螺旋天线的轴向长度来使其小型化的方法。根据目标尺寸的减小，可通过多次折叠PQHA的螺旋元件来实现轴向长度的减小。至于馈电网络，带有折叠臂的紧凑级联功率分配器网络被设计为激励每个天线螺旋臂。对传统PQHA和双折（DF）PQHA的反射系数和增益模式进行的比较表明，该方法可以在不显着降低其阻抗带宽和效率的情况下实现近70％的轴向长度减小。

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《IEEE International RF and Microwave Conference》|2018年|21-24|共4页
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Mohd Fais B. Mansor; Tim Brown;
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Helical antennas; Impedance; Antenna radiation patterns; Power dividers; Antenna feeds; Reflection coefficient;

机译：螺旋天线;阻抗;天线辐射方向图;功率分配器;天线馈源;反射系数;

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专利

1. Printed half-wavelength quadrifilar helix antenna for GPS marine applications [J] . Shumaker P.K., Ho C.H. Electronics Letters . 1996,第3期

机译：GPS海洋应用的印刷半波长四线螺旋天线
2. Printed quadrifilar resonant helix antenna with integrated feeding network [J] . Sharaiha A., Terret C. Electronics Letters . 1997,第4期

机译：具有集成馈电网络的印刷四线共振螺旋天线
3. Effect of helix turn angle on the performance of a half wavelength quadrifilar antenna [J] . Amin M., Cahill R. IEEE microwave and wireless components letters . 2006,第6期

机译：螺旋转角对半波长四线天线性能的影响
4. Double-folded Half Wavelength Printed Quadrifilar Helix Antenna with Feeding Network [C] . Mohd Fais B. Mansor, Tim Brown IEEE International RF and Microwave Conference . 2018

机译：双折叠的半波长印花四足螺旋天线，带喂养网络
5. A new technique for designing compact spatial feed networks for phased array antennas using antenna array sampling. [D] . McCarroll, Christopher P. 2005

机译：一种使用天线阵列采样为相控阵天线设计紧凑型空间馈电网络的新技术。
6. Helix–loop–helix/basic helix–loop–helix transcription factor network represses cell elongation in Arabidopsis through an apparent incoherent feed-forward loop [O] . Miroslava K. Zhiponova, Kengo Morohashi, Isabelle Vanhoutte, 2014

机译：螺旋-环-螺旋/碱性螺旋-环-螺旋转录因子网络通过明显的非连贯前馈环抑制拟南芥中的细胞伸长
7. A BROADBAND PRINTED QUADRIFILAR HELICAL ANTENNA WITH A NOVEL COMPACT BROADBAND FEEDING NETWORK [O] . Xiao-Qiang Yang, Ze-Hong Yan, Ping Xu, 2014

机译：具有新型紧凑型宽带送料网络的宽带印刷四元螺旋天线
8. Comparative Study of Microstrip Patch Antenna Feed Network (PREPRINT). [R] . Jamali, B., Cook, T. 2014

机译：微带贴片天线馈电网络（pREpRINT）的比较研究。

Double-folded Half Wavelength Printed Quadrifilar Helix Antenna with Feeding Network

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