Design of Microstrip Bandstop Filter using Split Ring Resonator with Inter Digital

2017 ◽  
Vol 5 (4) ◽  
pp. 1 ◽  
Author(s):  
Mishra Anuj Kumar ◽  
Pandey Arvind Kumar ◽  
Chauhan R.K. ◽  
◽  
◽  
...  
2019 ◽  
Vol 32 ◽  
pp. 681-686
Author(s):  
Mohssine El Ouahabi ◽  
Alia Zakriti ◽  
Mohamed Essaaidi ◽  
Aziz Dkiouak

Author(s):  
ENCENG SULAEMAN ◽  
ARSYAD RAMADHAN DARLIS ◽  
HARIANTI ASRI DEWI

ABSTRAKKebutuhan akan komunikasi bergerak semakin mengalami peningkatan dalam dunia teknologi yang ada saat ini, maka hadirlah teknologi terbaru yaitu Long Term Evolution (LTE). Dengan teknik duplex jenis Frequency Division Duplex (FDD), dirancanglah duplexer yang mampu melakukan proses pengiriman dan penerimaan dalam satu waktu dengan frekuensi yang berbeda antara uplink dan downlink. Pada penelitian ini dirancang dan diimplementasikan sebuah duplekser dengan menggunakan metoda Hybrid Coupler dan Bandstop Filter berbasis Split Ring Resonator untuk band frekuensi ke-7 pada teknologi LTE di sisi Base Transceiver Station (BTS). Duplekser dibuat dengan menggabungkan dua buah hybrid Coupler dan dua buah Bandstop Filter. Hasil pengukuran duplexer saat port Tx mengirimkan sinyal ke antena dengan nilai redaman pada frekuensi tengah downlink sebesar 3.168 dB. Lalu pada saat antena menerima sinyal untuk diteruskan ke Rx terdapat redaman di frekuensi tengah uplink sebesar 6 dB. Sedangkan untuk isolasi dari port Tx-port Rx dihasilkan sebesar 15 dB.Kata kunci: Duplexer, Bandstop Filter, Split Ring Resonator, Hybrid Coupler, dan Long Term Evolution.ABSTRACTThe necessary of mobile communication has increased in technology, now it released the new of technology is Long Term Evolution (LTE). Type of duplex is Frequency Division Duplex (FDD), designed a duplexer which it is capable for transmitting and receiving process at the same time with the different of frequency between uplink and downlink. Research of designed and implemented a duplexer using Hybrid Coupler and Bandstop filters based on Split Ring Resonators for the frequency band 7th on LTE technology at Base Transceiver Station (BTS). Duplexer is made by combining two coupler and two bandstop filter. The results of duplexer measurements, when Tx port transmit the signal to antenna port with attenuation at the downlink frequency center at 3.168 dB. Attenuation from antenna port to Rx port about 6 dB. Isolation between Tx port and Rx port about 15 dB.Keywords: Duplexer, Bandstop Filter, Split Ring Resonator, Hybrid Coupler, and Long Term Evolution.


2016 ◽  
Vol 26 (8) ◽  
pp. 571-573 ◽  
Author(s):  
Amir Ebrahimi ◽  
Withawat Withayachumnankul ◽  
Said F. Al-Sarawi ◽  
Derek Abbott

2015 ◽  
Vol 51 (8) ◽  
pp. 632-633 ◽  
Author(s):  
Yang Cai ◽  
Zuping Qian ◽  
Wenquan Cao ◽  
Yingsong Zhang ◽  
Liu Yang

Sensors ◽  
2021 ◽  
Vol 21 (7) ◽  
pp. 2256
Author(s):  
Hashinur Islam ◽  
Saumya Das ◽  
Tanweer Ali ◽  
Pradeep Kumar ◽  
Sourav Dhar ◽  
...  

The ever-growing expectation for high data rates has led to the introduction of multiple-input multiple-output (MIMO) technologies to wireless connectivity. Such a system requires an MIMO antenna with high isolation. At the same time, the MIMO dimension should not be compromised for achieving high isolation. Thus, isolation techniques that do not allow an increase in dimension need to be fostered for MIMO antenna design. In this paper, a novel low-profile, miniaturized MIMO antenna with high isolation was developed considering a split ring resonator (SRR)-based bandstop filter as a decoupling network. The bandstop filter was designed with a unit cell split ring resonator structure and was deployed between two closely spaced monopole MIMO antenna elements to obtain isolation as high as 39.25 dB at 2.61 GHz. Two open-circuit stub lines were attached with the MIMO feeding network to achieve good impedance matching at resonance frequency. The proposed antenna exhibited a peak gain of 3.8 dBi and radiation efficiency of 84%. It had a low envelop correlation coefficient (ECC < 0.12), high diversity gain (DG > 9.95 dB), low mean effective gain ratio (MEG 1/MEG 2 < 0.05 dB), and low channel capacity loss (CCL < 0.042 bits/s/Hz) at resonance frequency. The overall antenna dimension was restricted to 44 mm ×22 mm (0.38 λ0×0.19 λ0) for its easy integration in compact wireless devices.


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