Traveling-wave antenna array (TWAA) with multioctave scan-gain-bandwidth

2016 ◽  
Author(s):  
Johnson J. H. Wang
Keyword(s):  
Antenna Array ◽  
Traveling Wave ◽  
Gain Bandwidth ◽  
Wave Antenna ◽  
Traveling Wave Antenna

New electronic scanning traveling-wave antenna array

2006 ◽  
Vol 48 (11) ◽  
pp. 2186-2189
Author(s):  
A. Alaeddine ◽  
M. Rammal ◽  
O. Bazzi ◽  
Y. Mohanna ◽  
A. Reineix
Keyword(s):  
Antenna Array ◽  
Traveling Wave ◽  
Wave Antenna ◽  
Traveling Wave Antenna

Broadband SIW Traveling Wave Antenna Array for Terahertz Applications

2021 ◽  
pp. 211-219
Author(s):  
Nabil Cherif ◽  
Mehadji Abri ◽  
Fellah Benzerga ◽  
Hadjira Badaoui ◽  
Junwu Tao ◽  
...  
Keyword(s):  
Antenna Array ◽  
Traveling Wave ◽  
Wave Antenna ◽  
Terahertz Applications ◽  
Traveling Wave Antenna

scholarly journals A wideband dual-circularly polarized traveling wave antenna array

2021 ◽  
Vol 72 (6) ◽  
pp. 407-412
Author(s):  
Jia-Lin Li ◽  
Long-Jie Wang ◽  
Jin Liu ◽  
Kexin Song ◽  
Ye Jin ◽  
...  
Keyword(s):  
Circular Polarization ◽  
Antenna Array ◽  
Phase Difference ◽  
Linear Polarization ◽  
Traveling Wave ◽  
Beam Deflection ◽  
Impedance Bandwidth ◽  
Circularly Polarized ◽  
Wave Antenna ◽  
Traveling Wave Antenna

Abstract A dual-circularly polarized traveling wave antenna based on linear polarization array with wideband response is proposed. The circular polarization is realized by the sequential rotation arrangement of four linear polarization elements and series feeding with a phase difference 90°. Rotating four of such subarrays sequentially with a phase difference of 90° not only broadens the axial ratio (AR) bandwidth but also corrects the pattern beam deflection. Left-handed circular polarization (LHCP) and right-handed circular polarization (RHCP) are respectively achieved by exciting two different ports. The measured impedance bandwidth of the developed antenna array is 27.5 %. The 3-dB AR bandwidths of RHCP and LHCP are respectively 20.7 % and 22.4 % with the peak gains of about 8.7 and 8.3 dBic.

A new compact UWB traveling-wave antenna based on CRLH-TLs for embedded electronic systems

2014 ◽  
Vol 8 (8) ◽  
Author(s):  
Mohammad Alibakhshi Kenari
Keyword(s):  
Traveling Wave ◽  
Printed Circuit Boards ◽  
Ultra Wideband ◽  
Impedance Bandwidth ◽  
Electronic Systems ◽  
Potential Candidate ◽  
Left Handed ◽  
Wave Antenna ◽  
Spiral Inductors ◽  
Traveling Wave Antenna

Design and fabrication of a traveling-wave printed planar composite right/left-handed (CRLH) antenna are presented in this paper. The proposed traveling-wave antenna constructed of four unit cells with b-shaped geometries, which each occupy 2.49 mm length, 6.32 mm width, and 0.8 mm height. In this paper, with designing the optimized b-shaped printed planar structure by the standard manufacturing techniques on the printed circuit boards, which perform the roles of the series left-handed (LH) capacitances (CL), the antenna size, bandwidth, and radiation specifications may be improved to the desirable range. Also, to obtaining the desired results the spiral inductors have been used, which play the roles of the shunt LH inductances (LL). The fabricated antenna with the proposed structure can be covered more from 2 GHz measured impedance bandwidth with minimum of the measured gain and radiation efficiency equal to 6.1 dBi and 52.3%, respectively, which happen at 9 GHz. According to the provided results, the proposed compact ultra-wideband traveling-wave antenna is a potential candidate to use in the embedded electronic systems and portable wireless communication devices.

Sign in / Sign up

Export Citation Format

Share Document