New Approach In Designing Hexagonal-Shaped Antenna Based On Area Analysis

n this article, a new method is presented to calculate dimensions of a hexagonal-shaped antenna based on frequency and rectangular-shaped antenna. The frequency responses of the presented antenna are compared with rectangular shape antenna and both antennas are designed at 2.4 GHz. The dimensions of ground are assumed 10×10 mm2. The areas of the rectangular and hexagonal-shaped antennas are the same, therefore the frequency of both of them are 2.4 GHz and gain, directivity, and efficiency because of changing structure are improved

New Approach In Designing Hexagonal-Shaped Antenna Based On Area Analysis

In this article, a new method is presented to calculate dimensions of a hexagonal-shaped antenna based on frequency and rectangular-shaped antenna. The frequency responses of the presented antenna are compared with rectangular shape antenna and both antennas are designed at 2.4 GHz. The dimensions of ground are assumed 10×10 mm 2 . The areas of the rectangular and hexagonal-shaped antennas are the same, therefore the frequency of both of them are 2.4 GHz and gain, directivity, and efficiency because of changing structure are improved

New Approach In Designing Hexagonal-Shaped Antenna Based On Area Analysis

In this article, a new method is presented to calculate dimensions of a hexagonal-shaped antenna based on frequency and rectangular-shaped antenna. The frequency responses of the presented antenna are compared with rectangular shape antenna and both antennas are designed at 2.4 GHz. The dimensions of ground are assumed 10×10 mm 2 . The areas of the rectangular and hexagonal-shaped antennas are the same, therefore the frequency of both of them are 2.4 GHz and gain, directivity, and efficiency because of changing structure are improved

New Approach In Designing Hexagonal-Shaped Antenna Based On Area Analysis

n this article, a new method is presented to calculate dimensions of a hexagonal-shaped antenna based on frequency and rectangular-shaped antenna. The frequency responses of the presented antenna are compared with rectangular shape antenna and both antennas are designed at 2.4 GHz. The dimensions of ground are assumed 10×10 mm2. The areas of the rectangular and hexagonal-shaped antennas are the same, therefore the frequency of both of them are 2.4 GHz and gain, directivity, and efficiency because of changing structure are improved

Trapezoid-shaped resonators to design compact branch line coupler with harmonic suppression

This article proposes a new branch-line coupler design using two trapezoid-shaped resonators, applied in side and center. The standard 35 and 50 Ohms λ/4 transmission lines (TLs) are attained through the variations of the resonator’s TLs width. Since there are not explicit formulas for the suggested trapezoidal shape resonator, the design procedure will include the derivation of new formulas to configure the LC equivalent circuit. The proposed branch-line coupler, operating at 0.95 GHz, has achieved 79% of size reduction if compared to the conventional designs. Furthermore, the suggested design has successfully diminished the first six harmonics with a suppression level of (41, 29, 29, 28, 20, and 20) dB, respectively. The bandwidth is from 800 MHz to 1 GHz and The fractional bandwidth is 22.2%

A compact lowpass filter for satellite communication systems based on transfer function analysis

This paper presents a very efficient design procedure for a high-performance microstrip lowpass filter (LPF). Unlike many other sophisticated design methodologies of microstrip LPFs, which contain complicated configurations or even over-engineering in some cases, this paper presents a straightforward design procedure to achieve some of the best performance of this class of microstrip filters. The proposed filter is composed of three different polygonal-shaped resonators, two of which are responsible for stopband improvement, and the third resonator is designed to enhance the selectivity of the filter. A holistic performance assessment of the proposed filter is presented using a Figure of Merit (FOM) and compared with some of the best filters from the same class, highlighting the superiority of the proposed design. A prototype of the proposed filter was fabricated and tested, showing a 3-dB cut-off frequency (fc) at 1.27 GHz, having an ultrawide stopband with a suppression level of 25 dB, extending from 1.6 to 25 GHz. The return loss and the insertion loss of the passband are better than 20 dB and 0.25 dB, respectively. The fabricated filter has a high FOM of 76331, and its lateral size is 22.07 mm x 7.57 mm