Novel Compact Asymmetric Coplanar Strip (ACPS)-Fed Zeroth-Order Resonant Antennas with Bandwidth Enhancement
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Li Zhu
Abstract
Two compact zeroth-order resonant antennas employing short-ended mu-negative transmission line (MNG-TL) are presented. Both antennas are fed by asymmetric coplanar strip (ACPS), so strong miniaturization and simple structure can be achieved. Proposed antenna 1 operates at 2.38–2.47 GHz (fractional bandwidth is 3.7%), with a size of 0.093λ0 × 0.145λ0 × 0.008λ0 at center frequency. In order to extend the bandwidth further, a tapered structure (using parabola curves) is designed in proposed antenna 2. Then an operating band of 2.41–2.97 GHz (fractional bandwidth is 20.8%) is obtained with a size of 0.095λ0 × 0.225λ0 × 0.009λ0 at center frequency. Finally both antennas are fabricated and measured; measurements and EM (electromagnetic) simulations are in good agreement. And the results demonstrate that the proposed antennas have satisfactory omnidirectional radiation patterns with reasonable gains and extended efficiencies within the operating bands.
Funding statement: Funding: This work was supported by the National Natural Foundation of China under grant no. 61372034.
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©2015 by De Gruyter
Articles in the same Issue
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- A Triple-Band Monopole Planar Antenna for WLAN and WiMAX Applications
- Novel Compact Asymmetric Coplanar Strip (ACPS)-Fed Zeroth-Order Resonant Antennas with Bandwidth Enhancement
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Articles in the same Issue
- Frontmatter
- A Triple-Band Monopole Planar Antenna for WLAN and WiMAX Applications
- Novel Compact Asymmetric Coplanar Strip (ACPS)-Fed Zeroth-Order Resonant Antennas with Bandwidth Enhancement
- A Wide Stop-Band Miniaturized Branch-Line Hybrid Coupler
- Using Microstrip LPF in Gysel Power Divider for Extreme Size Reduction and Higher Order Harmonic Suppression
- A Novel Compact UWB Bandpass Filter with Quad-Notched Bands Based on S-SCRLHs Resonator
- Space-Time-Coded Adaptive Spatial Modulation in Wireless MIMO Communication Systems
- A Unified Approach to Performance Analysis of Multihop Relay Fading Channels Using Generalized Gamma Model
- Bit Stream Recognition and Analysis in Cognitive Radio
- Improving Physical Layer Security via TAS and Full-Duplex Artificial-Noise-Added Receiver
- Design of OFDM Signal with Good Autocorrelation for Ground Penetrating Radar
- A New Microwave Asphalt Radar Rover for Thin Surface Civil Engineering Applications
