Dual-Polarization and Low-Sidelobe Corrugated Rectangular Horn Antennas for Outdoor RCS Measurement
-
Changying Wu
,
Congxiang Li
Abstract
Outdoor radar cross section (RCS) measurement suffers background clutter. Such clutter needs to be minimized, especially when measuring low RCS level objects. To do this, a pair of corrugated horn antennas with a rectangular aperture has been designed, fabricated, and measured to improve the performance of outdoor RCS measurement. This antenna consists of a coaxial-waveguide adaptor, a square-rectangular waveguide transition, a corrugated rectangular horn, and chokes. A comparison of the performances of several corrugation profiles is provided. The tangential profile surpasses others because it provides the necessary low sidelobe level and narrow elevation beamwidth. The proposed antenna achieves −30 dB sidelobe level, fan-shaped beam pattern, and dual-polarization with −26 dB cross-polarization level over the band from 8.5 GHz to 12.5 GHz. The effectiveness of the antenna has been verified experimentally on a roof with two corner reflectors that were deployed intentionally to enlarge the effects of background clutter.
Funding statement: This work was supported in part by the Seed Foundation of Innovation and Creation for Graduate Students in Northwestern Polytechnical University under Grant ZZ2019155, the International Scientific Cooperation Project Fund of Shaanxi Research Plan under Grant 2019 KW-054, and the National Natural Science Foundation of China under Grant 61871323.
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Articles in the same Issue
- Frontmatter
- Research Articles
- Wide-Angle RCS Enhanced Tag Based on Dielectric Resonator – Lens Combination
- 4-Channel Tunable Optical Demultiplexer Based on Nonlinearity Phenomenon in 2D Resonant Cavity Photonic Crystals
- Near Zero Parameter Metamaterial Inspired Superstrate for Isolation Improvement in MIMO Wireless Application
- A Tri-band Angularly Stable Frequency Selective Surface with Controllable Resonances for EM Shielding
- Dual-Polarization and Low-Sidelobe Corrugated Rectangular Horn Antennas for Outdoor RCS Measurement
- Circularly Polarized Microstrip Antenna Using SLPD Electromagnetic Band Gap Structure
- Design of Novel Compact Quad-Band Bandpass Filter with High Selectivity
- Compact Ultra-Wide Upper Stopband Microstrip Dual-Band BPF Using Tapered and Octagonal Loop Resonators
- Modelling of Acoustic Wave Propagation Due to Partial Discharge and Its Detection and Localization in an Oil-Filled Distribution Transformer
- A 5.7 mW, UWB LNA for Wireless Applications Using Noise Canceling Technique in 90 nm CMOS
Articles in the same Issue
- Frontmatter
- Research Articles
- Wide-Angle RCS Enhanced Tag Based on Dielectric Resonator – Lens Combination
- 4-Channel Tunable Optical Demultiplexer Based on Nonlinearity Phenomenon in 2D Resonant Cavity Photonic Crystals
- Near Zero Parameter Metamaterial Inspired Superstrate for Isolation Improvement in MIMO Wireless Application
- A Tri-band Angularly Stable Frequency Selective Surface with Controllable Resonances for EM Shielding
- Dual-Polarization and Low-Sidelobe Corrugated Rectangular Horn Antennas for Outdoor RCS Measurement
- Circularly Polarized Microstrip Antenna Using SLPD Electromagnetic Band Gap Structure
- Design of Novel Compact Quad-Band Bandpass Filter with High Selectivity
- Compact Ultra-Wide Upper Stopband Microstrip Dual-Band BPF Using Tapered and Octagonal Loop Resonators
- Modelling of Acoustic Wave Propagation Due to Partial Discharge and Its Detection and Localization in an Oil-Filled Distribution Transformer
- A 5.7 mW, UWB LNA for Wireless Applications Using Noise Canceling Technique in 90 nm CMOS
