![Design of a high gain quadrifilar helix antenna for satellite mobile communication | Semantic Scholar Design of a high gain quadrifilar helix antenna for satellite mobile communication | Semantic Scholar](https://d3i71xaburhd42.cloudfront.net/2b3516d9263b70b30b0cc76b50dfee890da2c643/2-Figure2-1.png)
Design of a high gain quadrifilar helix antenna for satellite mobile communication | Semantic Scholar
![Figure 1 from Compact Design of Triple-Band Circularly Polarized Quadrifilar Helix Antennas | Semantic Scholar Figure 1 from Compact Design of Triple-Band Circularly Polarized Quadrifilar Helix Antennas | Semantic Scholar](https://d3i71xaburhd42.cloudfront.net/7d7d61ab9174efbc8218c0a1d80e629640c96b84/2-Figure1-1.png)
Figure 1 from Compact Design of Triple-Band Circularly Polarized Quadrifilar Helix Antennas | Semantic Scholar
![A novel design for a dual-mode triple-band communication terminal antenna based on the quadrifilar helix antenna and the BeiDou satellite navigation system - ScienceDirect A novel design for a dual-mode triple-band communication terminal antenna based on the quadrifilar helix antenna and the BeiDou satellite navigation system - ScienceDirect](https://ars.els-cdn.com/content/image/1-s2.0-S0030402616304880-gr1.jpg)
A novel design for a dual-mode triple-band communication terminal antenna based on the quadrifilar helix antenna and the BeiDou satellite navigation system - ScienceDirect
![Dual-band shaped-pattern quadrifilar helix antenna Patent Grant Klein , et al. Dec [AEROANTENNA TECHNOLOGY, INC.] Dual-band shaped-pattern quadrifilar helix antenna Patent Grant Klein , et al. Dec [AEROANTENNA TECHNOLOGY, INC.]](https://uspto.report/patent/grant/10511099/US10511099-20191217-D00000.png)