Ultrawideband, Wide-Angle Scanning Array With Compact, Single-Layer Feeding Network

This article presents a single-polarization and ultrawideband tightly coupled dipole array (TCDA) with a compact, single-layer feeding network, and a superstrate layer for wide-angle scanning. The feeding network based on a microstrip-to-slotline structure can significantly reduce the size and complexity of the array. The superstrate layer consists of two frequency selective surfaces (FSSs), which can efficiently increase the scanning angle. The single-polarization TCDA has a bandwidth of 5.13:1 (0.75–3.85 GHz) with the simulated active VSWR < 3 in an infinite array. The scanning angle of the TCDA reaches up to ±60° in all planes and ±70° in the E-plane and D-plane. The profile of the fabricated TCDA with <inline-formula> <tex-math notation="LaTeX">$16\times16$ </tex-math></inline-formula> elements is only <inline-formula> <tex-math notation="LaTeX">$0.12\lambda $ </tex-math></inline-formula> at the largest working wavelength. The measured results of a subset of the array are consistent with the simulated.

[1]  Shiwen Yang,et al.  A Novel Wideband Antenna Array with Tightly Coupled Octagonal Ring Elements , 2012 .

[2]  S. Livingston,et al.  A low-profile wide-band (5:1) dual-pol array , 2003, IEEE Antennas and Wireless Propagation Letters.

[3]  H. Wheeler,et al.  Wide-angle impedance matching of a planar array antenna by a dielectric sheet , 1965 .

[4]  John L. Volakis,et al.  Wideband Planar Array With Integrated Feed and Matching Network for Wide-Angle Scanning , 2013, IEEE Transactions on Antennas and Propagation.

[5]  L. Stark,et al.  Radiation Impedance of a Dipole in an Infinite Planar Phased Array , 1966 .

[6]  John L. Volakis,et al.  Ultrawideband Superstrate-Enhanced Substrate-Loaded Array With Integrated Feed , 2013, IEEE Transactions on Antennas and Propagation.

[7]  D. H. Schaubert,et al.  A 7–21 GHz Dual-Polarized Planar Ultrawideband Modular Antenna (PUMA) Array , 2012, IEEE Transactions on Antennas and Propagation.

[8]  J. Volakis,et al.  Ultrawideband Array With 70° Scanning Using FSS Superstrate , 2016, IEEE Transactions on Antennas and Propagation.

[9]  S. S. Holland,et al.  The Planar Ultrawideband Modular Antenna (PUMA) Array , 2012, IEEE Transactions on Antennas and Propagation.

[10]  Shiwen Yang,et al.  Low-Profile, Lightweight, Ultra-Wideband Tightly Coupled Dipole Arrays Loaded With Split Rings , 2019, IEEE Transactions on Antennas and Propagation.

[11]  John L. Volakis,et al.  Dual-Linear Polarized Phased Array With 9:1 Bandwidth and 60° Scanning Off Broadside , 2019, IEEE Transactions on Antennas and Propagation.

[12]  Markus H. Novak,et al.  Ultrawideband Antennas for Multiband Satellite Communications at UHF–Ku Frequencies , 2015, IEEE Transactions on Antennas and Propagation.

[13]  Robert J. Mailloux,et al.  Phased Array Antenna Handbook , 1993 .

[14]  John L. Volakis,et al.  Dual-Polarized Tightly Coupled Array With Substrate Loading , 2016, IEEE Antennas and Wireless Propagation Letters.

[15]  R. Kindt,et al.  Ultrawideband All-Metal Flared-Notch Array Radiator , 2010, IEEE Transactions on Antennas and Propagation.

[16]  David R. Smith,et al.  Electromagnetic parameter retrieval from inhomogeneous metamaterials. , 2005, Physical review. E, Statistical, nonlinear, and soft matter physics.

[17]  Sivaprasad Gogineni,et al.  A Dual-Polarized 2–18-GHz Vivaldi Array for Airborne Radar Measurements of Snow , 2016, IEEE Transactions on Antennas and Propagation.

[18]  John L. Volakis,et al.  A Wideband, Wide Scanning Tightly Coupled Dipole Array With Integrated Balun (TCDA-IB) , 2013, IEEE Transactions on Antennas and Propagation.

[19]  Shiwen Yang,et al.  Wideband Dual-Polarized Linear Array of Tightly Coupled Elements , 2018, IEEE Transactions on Antennas and Propagation.

[20]  James J. Rawnick,et al.  A low-profile broadband phased array antenna , 2003, IEEE Antennas and Propagation Society International Symposium. Digest. Held in conjunction with: USNC/CNC/URSI North American Radio Sci. Meeting (Cat. No.03CH37450).

[21]  A. Ludwig.  The definition of cross polarization , 1973 .

[22]  J. B. Knorr,et al.  Slot-Line Transitions (Short Papers) , 1974 .

[24]  H. Wheeler,et al.  Simple relations derived fom a phased-array antenna made of an infinite current sheet , 1965 .

[25]  Mark Jones,et al.  A New Approach to Broadband Array Design using Tightly Coupled Elements , 2007, MILCOM 2007 - IEEE Military Communications Conference.

[26]  D H Schaubert,et al.  Analysis of Large Microstrip-Fed Tapered Slot Antenna Arrays by Combining Electrodynamic and Quasi-Static Field Models , 2011, IEEE Transactions on Antennas and Propagation.

[27]  A. Neto,et al.  Wideband, Wide-Scan Planar Array of Connected Slots Loaded With Artificial Dielectric Superstrates , 2016, IEEE Transactions on Antennas and Propagation.

[28]  Ben A. Munk,et al.  Broadband Wire Arrays , 2003 .