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Muktamar Cholifah Aisiyah
Universitas Mhammadiyah Lamongan
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Pola Radiasi Antena Patch dalam Skala Linier Annas, Muhamad Azwar; Widodo, Aris; Chasanah, Uswatun; Aisiyah, Muktamar Cholifah; Ningrum, Izza Eka
YASIN Vol 2 No 5 (2022): OKTOBER
Publisher : Lembaga Yasin AlSys

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58578/yasin.v2i5.895

Abstract

An antenna radiation pattern experiment has been carried out with the aim of determining the patch antenna radiation pattern on a logarithmic and linear scale, understanding the properties and principles of the antenna, and understanding the types of antenna radiation patterns. In the experiment, the angle, frequency, and radian intensity data were obtained, and the value of the linear intensity was calculated. With the principle of converting electrical signals into electromagnetic signals. a graph between angle and intensity is obtained. the graph between radian intensity and angle forms a circular pattern, in which the value of intensity and frequency at each point with a difference of 5 degrees has almost the same value. In conclusion, the antenna is a structure that can receive and release electromagnetic waves in the air. The patch antenna used has a unidirectional radiation pattern. Converts electromagnetic signals into electrical signals and vice versa, has a certain radiation pattern, and is easily disturbed by metallic materials.
Analisis Nilai Kalor dan Laju Pembakaran Briket Tempurung Kelapa dan Limbah Sampah Plastik Aisiyah, Muktamar Cholifah
YASIN Vol 2 No 5 (2022): OKTOBER
Publisher : Lembaga Yasin AlSys

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58578/yasin.v2i5.916

Abstract

This research is motivated by making alternative energy from waste. Currently, the waste problem is dominated by plastic waste. The most common use of plastic waste is plastic bags for shopping. This results in accumulation of waste. Briquettes are an alternative energy. The best briquettes are from coconut shells. This study made briquettes from coconut shells with added plastic waste with variations of 0%, 5%, 10%, 15% and 20%. Making briquettes goes through several stages, namely flouring the basic ingredients, making dough, molding and characterization. The characterization results show that the greater the added value of plastic waste, the greater the calorific value produced. This can affect the value of the briquette burning song. Maximum results were obtained from coconut shell briquettes with the addition of 25% plastic waste, namely 8261.2 cal/g.
Co-Authors Aris Widodo Aris Widodo Asmaul Lutfi Marufah AZWAR ANNAS, MUHAMAD Bait, Jennifer Farihatul Cahyani, Hana Dwi Hana Dwi Cahyani Heri Rismawan Makrufah, Dini Musfiana, Masria Ningrum, Izza Eka Uswatun Chasanah Uswatun Chasanah Vanis Aisyah Ayu Sugiarti