A novel half mode substrate integrated waveguide leaky‐wave antenna with continuous forward‐to‐backward beam scanning functionality

2018 ◽  
Vol 28 (9) ◽  
Author(s):  
Leilei Liu ◽  
Xin Gu ◽  
Lei Zhu ◽  
Yingjiao Rong ◽  
Hanming Qian
Keyword(s):  
Substrate Integrated Waveguide ◽  
Leaky Wave ◽  
Beam Scanning ◽  
Leaky Wave Antenna ◽  
Wave Antenna

scholarly journals Circular-Polarized Substrate-Integrated-Waveguide Leaky-Wave Antenna With Wide-Angle and Consistent-Gain Continuous Beam Scanning

2019 ◽  
Vol 67 (7) ◽  
pp. 4418-4428 ◽  
Author(s):  
Shu-Lin Chen ◽  
Debabrata K. Karmokar ◽  
Zheng Li ◽  
Pei-Yuan Qin ◽  
Richard W. Ziolkowski ◽  
...  
Keyword(s):  
Wide Angle ◽  
Substrate Integrated Waveguide ◽  
Continuous Beam ◽  
Leaky Wave ◽  
Beam Scanning ◽  
Leaky Wave Antenna ◽  
Wave Antenna

Design and Analysis of Full and Half Mode Substrate Integrated Waveguide Planar Leaky Wave Antenna with Continuous Beam Scanning in X-Ku Band

Frequenz ◽  
2019 ◽  
Vol 73 (5-6) ◽  
pp. 171-178 ◽  
Author(s):  
Ved Prakash ◽  
Sunita Kumawat ◽  
Priti Singh
Keyword(s):  
Characteristic Impedance ◽  
Substrate Integrated Waveguide ◽  
Continuous Beam ◽  
Leaky Wave ◽  
Beam Scanning ◽  
Paper Substrate ◽  
Maximum Gain ◽  
Leaky Wave Antenna ◽  
Wave Antenna ◽  
Frequency Changes

AbstractIn this paper, substrate-integrated waveguide (SIW) and half mode substrate integrated waveguide (HM-SIW) periodic leaky wave antennas (LWAs) are presented for the antenna applications. The continuous beam scanning (CBS) is realized by optimizing the unit cell by matching its impedance to the characteristic impedance of the waveguide. This leaky wave antenna is capable of total 60 ° scanning from −38 ° to + 22 ° as the frequency changes from 10.17 GHz to 16.3 GHz with a maximum gain of 11 dBi. Moreover, for further miniaturization, HM-SIW technology is employed in the presented LWA. This LWA is also capable of CBS from −50 ° to + 26 ° in the frequency band of 10 GHz to 16.5 GHz with a maximum gain of 12 dBi. The final prototypes of the both these antenna are fabricated and measured results are in agreement with the simulated ones.

scholarly journals A Novel Frequency Scanning Leaky-Wave Antenna Based on Corrugated Substrate Integrated Waveguide

2018 ◽  
Vol 2018 ◽  
pp. 1-6 ◽  
Author(s):  
Ke Chen ◽  
Yunhua Zhang ◽  
Siyuan He ◽  
Haitao Chen ◽  
Guoqiang Zhu
Keyword(s):  
Equivalent Circuit ◽  
Equivalent Circuit Model ◽  
Open Circuit ◽  
Substrate Integrated Waveguide ◽  
Leaky Wave ◽  
Beam Scanning ◽  
Active Devices ◽  
Leaky Wave Antenna ◽  
Wave Antenna ◽  
Equivalent Circuit Parameters

In order to facilitate the integration of active devices, a leaky-wave antenna (LWA) based on corrugated substrate integrated waveguide (CSIW) structure is proposed. By introducing rectangular ring slots on the CSIW structure, the proposed LWA is capable of beam scanning from backward to forward. The rectangular ring slots do not only enable energy leaking but also provide series capacitance. In addition, the grounded vias and quarter-wave open-circuit stubs provide shunt inductance. Thus, the proposed CSIW exhibits left-handed characteristic which enables beam scanning through the broadside. To further facilitate the design and suppress open-stopband of beam scanning antenna based on CSIW structure, an equivalent circuit model is developed and the relationships between structure parameters and the equivalent circuit parameters are presented. Based on this design guide, a leaky wave antenna is designed with radiation angle ranging from −53° to 23°. This proposed novel CSIW LWA has great potential in tunable or reconfigurable antenna design due to its ease of integration with active devices.

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