Broadband Long Rectangular Patch Antenna With High Gain and Vertical Polarization

2013 ◽  
Vol 61 (2) ◽  
pp. 539-546 ◽  
Author(s):  
Juhua Liu ◽  
Quan Xue
Keyword(s):  
Patch Antenna ◽  
High Gain ◽  
Vertical Polarization ◽  
Rectangular Patch

scholarly journals A Reconfigurable Polarization—Frequency Supershape Patch Antenna with Enhanced Bandwidth

Electronics ◽  
2020 ◽  
Vol 9 (7) ◽  
pp. 1166
Author(s):  
Anastasios Koutinos ◽  
Georgia Xanthopoulou ◽  
George Kyriacou ◽  
Michael Chryssomallis
Keyword(s):  
Dielectric Constant ◽  
Patch Antenna ◽  
Reconfigurable Antenna ◽  
Vertical Polarization ◽  
Pin Diodes ◽  
Rectangular Patch ◽  
Dissipation Losses

In this article a reconfigurable antenna for WLAN/WiMAX applications is presented. A super-shape radiator of an ellipsis shape is used to achieve wider intrinsic bandwidth compared to the classical rectangular patch antenna, while the dimensions remain comparable. The proposed antenna is fed at two points exciting both horizontal and vertical polarization but in different operating frequencies. To achieve wider bandwidth, as a whole but also for each polarization, the symmetrical feeding points for each excitation are also employed with a proper feeding network. PIN diodes are also used in the feeding network to provide the option of narrower bandwidth. The antenna substrate is Rogers RO4003C with dielectric constant εr = 3.55 and dissipation losses tanδ = 0.0027 with height h = 1.524 mm. The antenna operates in the range of 2.3 GHz to 2.55 GHz but, using the proposed procedure, it can be designed for different frequency ranges.

scholarly journals Performance Enhancement Techniques for Patch Antennas of Small Satellites

2021 ◽  
Author(s):  
Zizung Yoon ◽  
Mayank Mayank ◽  
Enrico Stoll
Keyword(s):  
Antenna Arrays ◽  
Patch Antenna ◽  
Power Flow ◽  
Performance Enhancement ◽  
Ground Plane ◽  
High Gain ◽  
Patch Antennas ◽  
Small Satellite ◽  
Rectangular Patch ◽  
Satellite Missions

Patch antennas are compact, less complex, planar structures and therefore, widely used in small satellite missions for telecommand, data link, and intersatellite link, particularly in S- band and X- band. Improved performance of these patch antennas in terms of gain and compactness will di-rectly affect the communication efficiency of small satellite missions. Especially the coming IoT (Internet of Things) constellations require high gain and efficient antenna arrays. An optimization of single patch antenna elements is an important cornerstone for the missions. Therefore, the ef-fects of various antenna enhancement techniques, such as slotted ground plane, resistor and ca-pacitor integration, parasitic patch elements, are analyzed. These techniques were applied on a rectangular patch antenna with parameter variation to identify the optimal performances with respect to bandwidth, operating frequency, gain, polarization, and power flow. Finally, the techniques were combined to obtain an optimized antenna in terms of gain and compactness. The results were compared to a slotted reference antenna. For the scenario of a 2.4 GHz patch antenna, a gain optimization of 27 % (from 7.09 to 8.14 dBi) or size reduction of 52 % (from 96.04 to 46.2 cm²) could be achieved. Overall, our study revealed an effective way to increase the patch antenna performance, which can directly contribute to more efficient communication links and design of antenna arrays.

scholarly journals On-Chip Terahertz Detector Designed with Inset-Feed Rectangular Patch Antenna and Catadioptric Lens

Electronics ◽  
2020 ◽  
Vol 9 (6) ◽  
pp. 1049
Author(s):  
Fan Zhao ◽  
Luhong Mao ◽  
Weilian Guo ◽  
Sheng Xie ◽  
Clarence Augustine T. H. Tee
Keyword(s):  
Patch Antenna ◽  
Simple Structure ◽  
High Gain ◽  
Patch Antennas ◽  
Strip Line ◽  
Rectangular Patch ◽  
Voltage Responsivity ◽  
On Chip ◽  
Very High ◽  
Detector Voltage

This study proposes an on-chip terahertz (THz) detector designed with on-chip inset-feed rectangular patch antenna and catadioptric lens. The detector incorporates a dual antenna and dual NMOSFET structure. Radiation efficiency of the antenna reached 89.4% with 6.89 dB gain by optimizing the antenna inset-feed and micro-strip line sizes. Simulated impedance was 85.55 − j19.81 Ω, and the impedance of the antenna with the ZEONEX horn-like catadioptric lens was 117.03 − j20.28 Ω. Maximum analyzed gain of two on-chip antennas with catadioptric lens was 17.14 dB resonating at 267 GHz. Maximum experimental gain of two on-chip patch antennas was 4.5 dB at 260 GHz, increasing to 10.67 dB at 250 GHz with the catadioptric lens. The proposed on-chip rectangular inset-feed patch antenna has a simple structure, compatible with CMOS processing and easily implemented. The horn-like catadioptric lens was integrated into the front end of the detector chip and hence is easily molded and manufactured, and it effectively reduced terahertz power absorption by the chip substrate. This greatly improved the detector responsivity and provided very high gain. Corresponding detector voltage responsivity with and without the lens was 95.67 kV/W with NEP = 12.8 pW/Hz0.5 at 250 GHz, and 19.2 kV/W with NEP = 67.2 pW/Hz0.5 at 260 GHz, respectively.

scholarly journals A new small high-gain wideband rectangular patch antenna for X and Ku bands applications

2018 ◽  
Vol 12 (2) ◽  
pp. 202-207 ◽  
Author(s):  
Soufian Lakrit ◽  
Hassan Ammor ◽  
Soufiane Matah ◽  
Radouane Karli ◽  
Adil Saadi ◽  
...  
Keyword(s):  
Patch Antenna ◽  
High Gain ◽  
Rectangular Patch

High Gain $2\times 4$ Rectangular Patch Antenna Array at 3500MHz for 5G Applications

2021 ◽  
Author(s):  
Bouba Ibrahim ◽  
Lixia Yang ◽  
Hongjin Wang ◽  
Hafiz Usman Tahseen
Keyword(s):  
Antenna Array ◽  
Patch Antenna ◽  
High Gain ◽  
Rectangular Patch

Broadband high gain cavity resonator antenna using planar electromagnetic bandgap (EBG) superstrate

2022 ◽  
pp. 1-12
Author(s):  
Soumik Dey ◽  
Sukomal Dey
Keyword(s):  
Patch Antenna ◽  
Impedance Matching ◽  
Cavity Resonator ◽  
High Gain ◽  
Center Frequency ◽  
Electromagnetic Bandgap ◽  
Gain Enhancement ◽  
Rectangular Patch ◽  
Fabry Perot ◽  
Rectangular Microstrip Antenna

Abstract This paper presents a broadband miniaturized Fabry–Perot cavity resonator antenna (CRA) made of novel electromagnetic bandgap (EBG) superstrate as partially reflecting surface (PRS) and reactive impedance surface (RIS) backed rectangular patch antenna. To the best of the authors' knowledge, the proposed EBG exhibits the highest stopband bandwidth (BW) with a bandgap existing between 7.37 and 12.4 GHz (50.9%). Frequency-selective property of the EBG is utilized under plane wave incidence to demonstrate it as PRS superstrate in CRA antenna. The cavity is excited with a rectangular microstrip antenna which is made of two dielectric substrates with an additional RIS layer sandwiched between them. The RIS provides wideband impedance matching of the primary feed antenna. A 7 × 7 array of the EBG superstrate is loaded over the patch antenna having an overall lateral dimension of only 45 × 45 mm2 or 1.62 λ0 × 1.62 λ0 where λ0 is the free space wavelength at the center frequency of 10.8 GHz. The proposed Fabry–Perot CRA (FP-CRA) achieves gain enhancement of 6.59 dB as compared with the reference antenna and has a 10 dB return loss BW of 23.79% from 10.07 to 12.79 GHz. A prototype of the FP-CRA is fabricated and experimentally tested with single and dual layers of EBG superstrate. Measured results show BWs of 21.5 and 24.8% for the two cases with peak realized gain of 12.05 and 14.3 dBi, respectively. Later a four-element antenna array with corporate feeding is designed as the primary feed of the CRA. The simulation result shows a flat gain of >13 dBi with gain variation <1.2 dB over the impedance BW of 13.2%.

Sign in / Sign up

Export Citation Format

Share Document