?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=RANCANG+BANGUN+ANTENA+BIQUAD+SEBAGAI+ANTENA%0D%0A%0D%0AFREKUENSI+RADIO+LORA+921.5+MHZ&rft.creator=SYINTHIA+MAEDY%2C+1515031076&rft.subject=620+Ilmu+teknik+dan+ilmu+yang+berkaitan&rft.description=Pemantauan+Gunung+Anak+Krakatau+(GAK)+memerlukan+sistem%0D%0Apengiriman+atau+transmisi+telekomunikasi+yang+dapat+melakukan+pengiriman+data%0D%0Asecara+real+time.+Sistem+transmisi+ini+akan+mengirimkan+data+-+data+pemantauan%0D%0AGAK+dari+sekumpulan+sensor+yang+disebar+dan+dikumpulkan+ke+dalam+node.+Pada%0D%0Adaerah+pemantauan+terdapat+tiga+node%2C+node+satu+dengan+yang+lainnya+memiliki%0D%0Ajarak+sejauh+4+KM.+Transmisi+data+antara+node+satu+dengan+node+yang+lainnya%0D%0Amenggunakan+modul+komunikasi+LoRa.+Antena+omnidirectional+yang+merupakan%0D%0Aantena+bawaan+dari+modul+komunikasi+LoRa+hanya+dapat+mengirimkan+data%0D%0Asejauh+1+KM%2C+sehingga+peneliti+membuat+antena+yang+dapat+menjangkau+area%0D%0Asejauh+4+KM.+Pada+penelitian+ini%2C+peneliti+merancang+dan+membangun+antena%0D%0Abiquad+yang+memiliki+frekuensi+kerja+921.5+MHz+dengan+bandwidth+sebesar+3%0D%0AMHz.Antena+ini+dirancang+menggunakan+aplikasi+CST+STUDIO+2019.+Pada+saat%0D%0Apengujian+menggunakan+VNA+6000+A+dan+spectrum+analyzer%2C+didapatkan%0D%0Abeberapa+parameter+dari+Antena+Biquad%2C+yaitu+pola+radiasi+dari+antena+biquad%0D%0Aadalah+direksional%2C+impedansi+masukan+sebesar+50.7325+ohm%2C+gain+sebesar+8.1+dB%2C%0D%0AVSWR+sebesar+1.7659%2C+serta+didapatkan+pula+parameter+uji+dari+pengujian%0D%0Amenggunakan+modul+komunikasi+LoRa.+Pengujian+Menggunakan+modul%0D%0Akomunikasi+LoRa+dilakukan+dengan+dua+skenario+untuk+mengetahui%0D%0Afungsionalitas+dari+antena+biquad+yang+dibuat.+Skenario+yang+pertama+adalah%0D%0Aantena+biquad+bekerja+sebagai+transmitter+dan+skenario+yang+kedua+adalah+antena%0D%0Abiquad+sebagai+receiver.+Hasil+dari+dua+skenario+yang+tersebut+didapatkan+data%0D%0Aberupa+nilai+RSSI%2C+delay%2C+waktu+pengiriman+dan+througput+dengan+jarak+yang%0D%0Adidapatkan+adalah+6%2C1+KM.+Data+yang+didapatkan+pada+pengujian+antena+biquad%0D%0Asebagai+transmitter+ataupun+sebagai+receiver+mendapatkan+hasil+yang+baik%2C%0D%0Asehingga+dapat+disimpulkan+antena+biquad+921.5+MHz+yang+diuji+dapat+digunakan%0D%0Asebagai+transmitter+ataupun+sebagai+receiver.%0D%0A.%0D%0AKata+Kunci%3A+Antena+Biquad%2C+LoRa%2C+VSWR%2C+gain%2C+impedansi%2C+CST+STUDIO+2019%2C%0D%0AGunung+Anak+Krakatau%2C+Antena+Transmitter%2C+Antena+Receiver.%0D%0AMonitoring+Gunung+Anak+Krakatau+(GAK)+requires+a+telecommunications%0D%0Adelivery+or+transmission+system+that+can+transmit+data+in+real+time.+This%0D%0Atransmission+system+will+send+GAK+monitoring+data+from+acollectionof+sensors%0D%0Athat+are+disseminated+and+collected+into+nodes..+In+the+monitoring+area+there+are%0D%0Athree+nodes%2C+one+node+with+the+other+has+a+distance+of+4+KM.+Data+transmission%0D%0Abetween+nodes+with+another+using+the+LoRa+communication+module.%0D%0AOmnidirectional+antenna+which+is+the+built-in+antenna+of+the+LoRa%0D%0Acommunication+module+can+only+transmit+data+as+far+as+1+KM%2C+so+researchers%0D%0Acreate+an+antenna+that+can+reach+an+area+as+far+as+4+KM.+In+this+study%2C%0D%0Aresearchers+designed+and+built+a+Biquad+Antenna+that+has+a+working+frequency+of%0D%0A921.5+MHz+with+a+bandwidth+of+3+MHz.This+antenna+was+designed+using+the+CST%0D%0ASTUDIO+2019+application.+At+the+time+of+testing+using+VNA+6000+A+and+spectrum%0D%0Aanalyzer%2C+several+parameters+were+obtained+from+the+Biquad+Antenna%2C+namely+the%0D%0Aradiation+pattern+of+the+biquad+antenna+is+directorsonal%2C+input+impedance+of%0D%0A50.7325+ohm%2C+gain+of+8.1+dB%2C+VSWR+of+1.7659%2C+and+also+obtained+test+parameters%0D%0Afrom+testing+using+LoRa+communication+module.+Testing+using+the+LoRa%0D%0Acommunication+module+was+conducted+with+two+scenarios+to+find+out+the%0D%0Afunctionality+of+the+Biquad+Antenna+created.+The+first+scenario+is+the+Biquad%0D%0AAntenna+working+as+a+Transmitter+and+the+second+scenario+is+the+Biquad+Antenna%0D%0Aas+a+Receiver.+The+results+of+the+two+scenarios+obtained+data+in+the+form+of+RSSI%0D%0Avalues%2C+delays%2C+delivery+times+and+througput+with+the+distance+obtained+is+6%2C1+KM.%0D%0AData+obtained+in+testing+biquad+antenna+as+transmitter+or+as+receiver+gets+good%0D%0Aresults%2C+so+it+can+be+concluded+that+the+921.5+MHz+biquad+antenna+tested+can+be%0D%0Aused+as+a+transmitter+or+as+a+receiver.%0D%0AKey+Words%3A+Biquad+Antenna%2C+LoRa%2C+VSWR%2C+Gain%2C+Impedance%2C+CST+STUDIO%0D%0A2019%2C+Anak+Krakatau+Mountain%2C+Antenna+Transmitter%2C+Antenna+Receiver.&rft.publisher=FAKULTAS+TEKNIK&rft.date=2021&rft.type=Skripsi&rft.type=NonPeerReviewed&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F61526%2F1%2F1.%2520ABSTRAK-ABSTRACT%2520-%2520Finta%2520Yaya%2520%25284%2529.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F61526%2F2%2F2.%2520SKRIPSI%2520FULL%2520-%2520Finta%2520Yaya%2520%25284%2529.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F61526%2F3%2F3.%2520SKRIPSI%2520TANPA%2520BAB%2520PEMBAHASAN%2520-%2520Finta%2520Yaya%2520%25284%2529.pdf&rft.identifier=++SYINTHIA+MAEDY%2C+1515031076++(2021)+RANCANG+BANGUN+ANTENA+BIQUAD+SEBAGAI+ANTENA+FREKUENSI+RADIO+LORA+921.5+MHZ.++FAKULTAS+TEKNIK%2C+UNIVERSITAS+LAMPUNG.+++++&rft.relation=http%3A%2F%2Fdigilib.unila.ac.id%2F61526%2F