Single-Layer Low-Profile Patch Antennas with Improved CP Performance by Using Multiresonant Modes (Invited Paper)

2020 ◽  
Author(s):  
Neng-Wu Liu ◽  
Lei Zhu
Keyword(s):  
Single Layer ◽  
Patch Antennas ◽  
Low Profile

scholarly journals A Novel Low Profile Dual-Frequency Shorted Patch Antenna

2020 ◽  
Vol 8 (5) ◽  
pp. 2469-2472
Keyword(s):  
Patch Antenna ◽  
Frequency Ratio ◽  
Single Layer ◽  
Patch Antennas ◽  
Dual Frequency ◽  
Planar Antennas ◽  
Radiation Characteristics ◽  
Small Frequency ◽  
Large Bandwidth ◽  
Low Profile

Dual-frequency planar antennas can substitute large bandwidth patch antennas, where there is a requirement for large bandwidth to cover two separate transmit receive bands. In this paper a novel single-feed, single layer, double-band, compact short loaded patch antenna is studied theoretically and experimentally. Besides the compactness, this design provides, dual frequency operation with a small frequency ratio of 1.3 between the two resonant bands. Various radiation characteristics are simulated as well as experimentally studied and good concurrence is observed between the simulated and measured results

A Single-Layer Low-Profile Broadband Metasurface Antenna Array for Sub-6 GHz 5G Communication Systems

2020 ◽  
pp. 1-1
Author(s):  
J.D Ntawangaheza ◽  
Liguo Sun ◽  
Zipeng Xie ◽  
Yingyang Pang ◽  
Zhuo Zheng ◽  
...  
Keyword(s):  
Antenna Array ◽  
Communication Systems ◽  
Single Layer ◽  
Low Profile ◽  
5G Communication

scholarly journals Yagi Array of Microstrip Quarter-Wave Patch Antennas with Microstrip Lines Coupling

2014 ◽  
Vol 2014 ◽  
pp. 1-7
Author(s):  
Juhua Liu ◽  
Yue Kang ◽  
Jie Chen ◽  
Yunliang Long
Keyword(s):  
Horizontal Plane ◽  
Return Loss ◽  
High Gain ◽  
Main Beam ◽  
Patch Antennas ◽  
Vertical Polarization ◽  
Microstrip Lines ◽  
Low Profile ◽  
Quarter Wave ◽  
Peak Gain

A new kind of Yagi array of quarter-wave patch antennas is presented. The Yagi array has a low profile, a wide bandwidth, and a high gain. A main beam close to endfire is produced, with a vertical polarization in the horizontal plane. A set of microstrip lines are introduced between the driven element and the first director element to enhance the coupling between them, and therefore the bandwidth could be increased and the back lobes could be suppressed. Measured results show that the Yagi array with 4 elements generates a peak gain of about 9.7 dBi, a front-to-back ratio higher than 10 dB, and a 10 dB return loss band from 4.68 GHz to 5.24 GHz, with a profile of 1.5 mm and an overall size of 80 × 100 mm2. An increase of the number of director elements would enhance the gain and have the main beam pointing closer to endfire.

scholarly journals Metamaterial Inspired Patch Antenna for ISM Band by Adding Single-Layer Complementary Split Ring Resonators

2015 ◽  
Vol 5 (6) ◽  
pp. 1328
Author(s):  
Rajni Rajni ◽  
Gursharan Kaur ◽  
Anupma Marwaha
Keyword(s):  
Patch Antenna ◽  
Single Layer ◽  
Ring Resonators ◽  
Impedance Match ◽  
Patch Antennas ◽  
Radiation Characteristics ◽  
Split Ring ◽  
Split Ring Resonators ◽  
Ism Band ◽  
Ansoft Hfss

In this work, we propose the design of metamaterial inspired compact circular patch antennas loaded with complementary split-ring resonators (CSRRs) for ISM band operation. CSRRs have been incorporated horizontally inside the dielectric. The various models of CSRR loaded antennas with different patch radius are produced and are evaluated numerically with Ansoft HFSS software. The results of the suggested antenna designs are presented that reveal a comparable impedance match and radiation characteristics with those of a normal patch antenna without CSRR. The proposed antennas yield high levels of miniaturization and similar performance to the conventional patch antenna at the 2.45GHz.

scholarly journals Low-Profile Harmonic Transponder for IoT Applications

Electronics ◽  
2021 ◽  
Vol 10 (17) ◽  
pp. 2053
Author(s):  
Maher Khaliel ◽  
Aman Batra ◽  
Abdelfattah Fawky ◽  
Thomas Kaiser
Keyword(s):  
Equivalent Circuit ◽  
Harmonic Generation ◽  
State Of The Art ◽  
Second Harmonic ◽  
Single Layer ◽  
Input Power ◽  
Conversion Loss ◽  
Iot Applications ◽  
Low Profile ◽  
Harmonic Conversion

This paper proposes a novel single-layer, low-profile harmonic transponder to be integrated with the printable diodes based on Si particles. The introduced prototype consists of two bowtie dipoles that are directly matched to the harmonic generation element at a fundamental 2.45GHz frequency and also at the corresponding second harmonic 4.9GHz frequency. Therefore, the antennas and T-matching parts can be manufactured as separate inlays using a single layer-substrate. Besides the new prototype, the harmonic conversion loss (CL) is theoretically and experimentally investigated. In this regard, the equivalent circuit is driven and utilized to analyze the CL performance with variations in fundamental frequency and input power. The introduced transponder outperforms the state-of-the-art work from the printability, size, and CL point of views.

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