Enhanced Double Negative Metamaterial Microstrip Antenna: Bandwidth, Gain Improvement, and Size Reduction for Radar Applications
A miniaturized end-fire microstrip patch antenna with enhanced bandwidth and high-gain characteristics is presented. The design uniquely integrates complementary circular split-ring resonators (CCSRRs) in the rectangular radiation patch and an optimized grid of crossed slots in the ground plane, gen...
Saved in:
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
IEEE
2024-01-01
|
| Series: | IEEE Access |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/10752948/ |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Summary: | A miniaturized end-fire microstrip patch antenna with enhanced bandwidth and high-gain characteristics is presented. The design uniquely integrates complementary circular split-ring resonators (CCSRRs) in the rectangular radiation patch and an optimized grid of crossed slots in the ground plane, generating a double-negative metamaterial (DNG-MTM) response. This innovative combination significantly improves antenna performance in terms of gain, bandwidth, and size. The antenna achieves a wide operating bandwidth from 3 GHz to 8.4 GHz, delivering an exceptional 90% fractional bandwidth, substantially outperforming conventional designs. A strategically positioned rectangular slot beneath the feed line mitigates bandwidth limitations at higher frequencies, further enhancing impedance matching. The compact design (28 mm <inline-formula> <tex-math notation="LaTeX">$\times 34$ </tex-math></inline-formula> mm, or <inline-formula> <tex-math notation="LaTeX">$0.28\lambda $ </tex-math></inline-formula>g <inline-formula> <tex-math notation="LaTeX">$\times 0.33\lambda $ </tex-math></inline-formula>g, where <inline-formula> <tex-math notation="LaTeX">$\lambda $ </tex-math></inline-formula>g is the guided wavelength at the lower edge of the frequency band) achieves a peak gain of 6.9 dBi, representing a major size reduction and gain enhancement compared to existing counterparts. The proposed antenna’s novel DNG-MTM structure, compact size, and high performance make it an ideal solution for C-band radar and mobile wireless communication systems. Simulated and measured results demonstrate good agreement, validating the effectiveness of the design and its advantages over current technologies. |
|---|---|
| ISSN: | 2169-3536 |