Periodic Fixed-Frequency Staggered Line Leaky Wave Antenna With Wide-Range Beam Scanning Capacity

A periodic fixed-frequency staggered line leaky wave antenna (LWA) with wide-range beam scanning capacity is proposed in this paper. The reconfigurable antenna is based on a periodic staggered line LWA. The dispersion and Bloch characteristics of the periodic antenna is analyzed by the Macro Cell Method (MCM). The open-stop band (OSB) of the antenna can be suppressed effectively using the relationship between widths of oblique feeding lines and stubs. The reconfigurable characteristic is achieved by switches and microstrip lines between the edge gaps of each unit cell. A “supercell” is established by combining several reconfigurable unit cells, and the state is controlled by connecting or disconnecting the edge gaps of each unit cell using switches. Fixed-frequency beam-scanning capacity is implemented due to different propagation constants in different supercell states. The prototyped reconfigurable antenna can scan the beam between 130° and 54° at 4.5 GHz.

[1]  Mothana L. Attiah,et al.  Achieving Fixed-Frequency Beam Scanning With a Microstrip Leaky-Wave Antenna Using Double-Gap Capacitor Technique , 2019, IEEE Antennas and Wireless Propagation Letters.

[2]  D. Jackson,et al.  A Novel Technique for Open-Stopband Suppression in 1-D Periodic Printed Leaky-Wave Antennas , 2009, IEEE Transactions on Antennas and Propagation.

[3]  Qi Luo,et al.  Low-Cost Electrical Beam-Scanning Leaky-Wave Antenna Based on Bent Corrugated Substrate Integrated Waveguide , 2019, IEEE Antennas and Wireless Propagation Letters.

[4]  D. K. Karmokar,et al.  Single-Layer Multi-Via Loaded CRLH Leaky-Wave Antennas for Wide-Angle Beam Scanning With Consistent Gain , 2019, IEEE Antennas and Wireless Propagation Letters.

[5]  A. Alvarez-Melcon,et al.  A Simple CRLH LWA Circuit Condition for Constant Radiation Rate , 2011, IEEE Antennas and Wireless Propagation Letters.

[6]  W. Menzel,et al.  A New Travelling Wave Antenna in Microstrip , 1978, 1978 8th European Microwave Conference.

[7]  Kwai-Man Luk,et al.  Linearly Polarized and Circularly Polarized Wideband Dipole Antennas With Reconfigurable Beam Direction , 2018, IEEE Transactions on Antennas and Propagation.

[8]  D. Jackson,et al.  Leaky‐Wave Antennas , 2008 .

[9]  Yunliang Long,et al.  Frequency-fixed beam-scanning microstrip leaky-wave antenna with multi-terminals , 2006 .

[10]  D.R. Jackson,et al.  Full-Wave Modal Dispersion Analysis and Broadside Optimization for a Class of Microstrip CRLH Leaky-Wave Antennas , 2008, IEEE Transactions on Microwave Theory and Techniques.

[11]  G Valerio,et al.  Accurate Bloch Analysis of 1-D Periodic Lines Through the Simulation of Truncated Structures , 2011, IEEE Transactions on Antennas and Propagation.

[12]  Yunliang Long,et al.  Periodic Triangle-Truncated DSPSL-Based Antenna With Backfire to Endfire Beam-Scanning Capacity , 2017, IEEE Transactions on Antennas and Propagation.

[13]  Karu P. Esselle,et al.  Periodic U-Slot-Loaded Dual-Band Half-Width Microstrip Leaky-Wave Antennas for Forward and Backward Beam Scanning , 2015, IEEE Transactions on Antennas and Propagation.

[14]  Lei Zhu,et al.  Uniform Periodic Leaky-Wave Antennas With Eliminated Open Stopbands , 2017, IEEE Antennas and Wireless Propagation Letters.

[15]  Ching-Kuang C. Tzuang,et al.  Phase-shifterless beam-steering micro-slotline antenna , 2002 .

[16]  K. Solbach,et al.  Transmission Line Modeling and Asymptotic Formulas for Periodic Leaky-Wave Antennas Scanning Through Broadside , 2011, IEEE Transactions on Antennas and Propagation.

[17]  Ke Chen,et al.  An Electronically Controlled Leaky-Wave Antenna Based on Corrugated SIW Structure With Fixed-Frequency Beam Scanning , 2019, IEEE Antennas and Wireless Propagation Letters.

[18]  Andrew R. Weily,et al.  Electronically Steerable 1-D Fabry-Perot Leaky-Wave Antenna Employing a Tunable High Impedance Surface , 2012, IEEE Transactions on Antennas and Propagation.

[19]  Tatsuo Itoh,et al.  Dominant mode leaky-wave antenna with backfire-to-endfire scanning capability , 2002 .

[20]  Dominic Deslandes,et al.  Backward to Forward Scanning Periodic Leaky-Wave Antenna With Wide Scanning Range , 2017, IEEE Transactions on Antennas and Propagation.

[21]  Paolo Baccarelli,et al.  1-D Combline Leaky-Wave Antenna With the Open-Stopband Suppressed: Design Considerations and Comparisons With Measurements , 2013, IEEE Transactions on Antennas and Propagation.

[22]  Miguel Ferrando-Bataller,et al.  Periodic Leaky-Wave Antenna on Planar Goubau Line at Millimeter-Wave Frequencies , 2013, IEEE Antennas and Wireless Propagation Letters.

[23]  Karu P. Esselle,et al.  Fixed-Frequency Beam Steering of Microstrip Leaky-Wave Antennas Using Binary Switches , 2016, IEEE Transactions on Antennas and Propagation.

[24]  Ross D. Murch,et al.  Single-Side-Scanning Surface Waveguide Leaky-Wave Antenna Using Spoof Surface Plasmon Excitation , 2018, IEEE Access.

[25]  Q. Xue,et al.  The Periodic Half-Width Microstrip Leaky-Wave Antenna With a Backward to Forward Scanning Capability , 2010, IEEE Transactions on Antennas and Propagation.

[26]  Yunjie Geng,et al.  Radiation Pattern-Reconfigurable Leaky-Wave Antenna for Fixed-Frequency Beam Steering Based on Substrate-Integrated Waveguide , 2019, IEEE Antennas and Wireless Propagation Letters.