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—This paper proposes a compact printed ultra-wideband (UWB) multiple-input-multiple-output (MIMO) antenna with a dimension of 38 × 91 mm 2. The presented UWB-MIMO antenna comprises two identical patch elements with D separation distance on the same substrate. The basic single antenna structure has a novel design comprising seven circles surrounding a center(More)
A P-shaped monopole antenna (PSMA) attached with a glass substrate is proposed for wireless body area networks (WBAN) applications. The study investigates the performance of PSMA above reflection plane substrates with diierent material of glass and a perfect electric conductor (PEC). The PSMA prototype is fabricated on the FR4 substrateto be operated(More)
This paper discuss about designing a dual frequencies monopole antenna with side feed. The antenna is required to operate at a frequency of 2.3 GHz and 2.45 GHz simultaneously. This proposed antenna is designed based on T-Slot antenna. With combination of stub at the left, it is observed that the capabilities of dual band frequencies have been successfully(More)
Kluyveromyces lactis is an excellent host for a high cell density culture, which allows high expression levels of recombinant enzymes. Nutrient composition and culture conditions affect the secretion, production level and stability of the recombinant host. Therefore, it is technologically important to formulate a medium that stimulates high cell density and(More)
This paper introduces the performance of an elliptical shaped antenna with random slots with the use of superstrate and compares the results between the original patch and the patch with superstrate layer but without dots. 5.8GHz is the reference or desired frequency set for measuring the performance of this antenna. The purpose of using superstrate is to(More)
This work is an effort in investigating and modeling an accurate circuit model derived from the transmission line method (CM/TLM) by simulating a rectangular microstrip patch array using two different simulation techniques, the transmission line method (TLM) and method of moments (MoM). Each array contains two element units of rectangular patches. This(More)
Wireless sensor network (WSN) is commonly used for localization applications. Through sniffing receive signal strength indicator (RSSI) in WSN system, localization and connection to access point highest RSSI can be done automatically. In this paper, we propose Raspberry-Pi (RasPi), based best access point selection method utilizing RSSI metric. The RasPi(More)
—Unequally spaced arrays technique offers an alternative for limited sidelobe level reduction compared to conventional array antennas with equally spaced elements. In this paper, the abilities and design of microstrip linear array antenna, fed by multiport feeding with uniform excitation coefficient in all array elements are presented for sidelobe level(More)
In this paper, dual-port polarization reconfigurable circular patch antenna is proposed. The polarization reconfigurability is achieved by modifying the coplanar waveguide (CPW) slotline feeding network located on the ground plane. Two quarter wavelength phase delays are interconnected on each of the slot lines. Eight switches are placed on the CPW slotline(More)
This paper presents a linearly polarized beam reconfigurable microstrip parasitic antenna deployed with rectangular parasitic elements. In this design, three variation of beam steering is controlled adopting two RF switches (currently copper pins for proof of concept). The effects of some parameter changes such as the spacing between parasitic element and(More)