Design and implementation of dual band microstrip patch antenna for WLAN energy harvesting system

Since the demand for self-sustained wireless systems is increasing, there is a trend towards RF energy harvesting. It is a key solution to energize the low power systems such as the Internet of Things (IoT) devices without replacing the batteries periodically. This paper presents the design and analysis of RF energy harvesting system that consists of dual-band microstrip patch antenna operating at 2.4 GHz and 5.8 GHz, an impedance matching network, 4-stage voltage doubler and a storing circuit. The antenna is designed using ADS Agilent and sonnet suites software that provides a directivity of 5.5 dBi and 6.3 dBi at 2.4 GHz and 5.8 GHz respectively. The measured results of the fabricated antenna are well agreement with the simulated results. Simulated results show that for an input received power of 10 mW, the proposed system can provide 4.5 mW power at the output of 4-stage voltage rectifier with an overall efficiency of 45%.TÜBİTAKPublisher versio

E shaped antenna surrounded with u shape

Due to copyright restrictions, the access to the full text of this article is only available via subscription.In this work we designed, simulated, fabricated and measured E-shape microstrip patch antenna. In the process of design, we surrounded E-shape patch antenna with “U” figure. As a result of this work, resonance frequency is 4.27 GHz and S11 is -9.69 dB and gain is 7.22 dB. Parametric study on different gap lengths between E and U shaped metals was studied. This antenna design is an improvement from last years research published in Aces conference 2016

E-shaped patch antenna with five resonances

Due to copyright restrictions, the access to the full text of this article is only available via subscription.n this paper, we designed, simulated, built and test `E-shaped patch antenna with five resonances' that gives 9 dB radiation pattern gain. Our simulation and experimental investigation aimed to understand the behavior of the two slits. The first frequency is 4.64GHz with 8.5dB gain the second frequency is 5.3GHz with 7.10dB gain, the third frequency is 10.1GHz with 9dB, the fourth is 12.9GHz with 9.62dB gain and the last frequency is 15.0 GHz with 8.63dB gain

Rectangular slotted square patch antenna with a floating ring

Due to copyright restrictions, the access to the full text of this article is only available via subscription.In this paper, a rectangular slotted square patch antenna with a floating ring and single point feed is presented. The proposed patch antenna, when optimized, achieved the highest gain of 7.17 dB at 7.12 GHz with -6.97 dB input match. Which presented theta polarized radiation pattern. Simulations conducted by changing the size of inner ring shape and high gains were observed between the frequencies of 7.08 and 7.13 GHz

Rectangular slotted square patch antenna with a floating ring

Due to copyright restrictions, the access to the full text of this article is only available via subscription.In this paper, a rectangular slotted square patch antenna with a floating ring and single point feed is presented. The proposed patch antenna, when optimized, achieved the highest gain of 7.17 dB at 7.12 GHz with -6.97 dB input match. Which presented theta polarized radiation pattern. Simulations conducted by changing the size of inner ring shape and high gains were observed between the frequencies of 7.08 and 7.13 GHz

Microstrip patch antenna design with unified cornered rectangles

Due to copyright restrictions, the access to the full text of this article is only available via subscription.In this design, high-gain, directional microstrip patch antenna works at 11.1 GHz, which is in Ku-Band satellite receive frequency band. Our design has 3 nested rectangular patches which are cornered. As a result, the input match of -17.48 dB at 11.1 GHz resonance frequency has been observed. The maximum achieved gain was 5.48 dBi

Dual-band gemini-shaped microstrip patch antenna for C-band and X-band applications

Due to copyright restrictions, the access to the full text of this article is only available via subscription.In this paper, a novel single-layer Gemini-shaped patch antenna with dual-band characteristics is presented. The proposed patch antenna, with design operating frequencies of 6.53 GHz and 8.62 GHz, is targeted for applications in C-band and X-band. More importantly, the Gemini-shaped microstrip patch antenna exhibits a theta polarized radiation pattern with gains of 6.036 dBi and 9.556 dBi with corresponding reflection coefficients of -18.69 dB (VSWR = 1.263) and -24.31 dB (VSWR = 1.129) at 6.53 GHz and 8.62 GHz, respectively. The measurements of the fabricated patch antenna corroborate the simulation results obtained in Sonnet Suites version 16.52. This dual-resonance antenna, with comparatively high gain performance, can be easily integrated into systems for satellite and radar communications

Microstrip patch antenna design with unified cornered rectangles

Due to copyright restrictions, the access to the full text of this article is only available via subscription.In this design, high-gain, directional microstrip patch antenna works at 11.1 GHz, which is in Ku-Band satellite receive frequency band. Our design has 3 nested rectangular patches which are cornered. As a result, the input match of -17.48 dB at 11.1 GHz resonance frequency has been observed. The maximum achieved gain was 5.48 dBi

F-Shaped Monopole Antenna

Due to copyright restrictions, the access to the full text of this article is only available via subscription.In this paper, effects of F antenna arm length on the frequency, gain and s11 values are studied. The arms and the total length of the F determine the resonance frequency of the antenna. The inverted F shaped antennas are used in the cell phones. The outcome showed that the middle length of the antenna determines the input match and gain of the antenna. We achieved the highest gain of 6.32 dBi at 4.21 GHz frequency with input match of -16.91 dB

Patch antenna with slits at 8 GHz

Due to copyright restrictions, the access to the full text of this article is only available via subscription.In this paper, a rectangular shaped patch antenna with two equal rectangular shaped slits on each side and one at the top has been demonstrated. By modifying the size and the shape of the initial antenna, a radiation efficient and performance enhanced antenna has been designed. The proposed antenna resonances at 8.0 GHz with the peak gain of 6.58 dB, allowing the antenna to be used in wireless communication applications