scholarly journals Study of Microstrip Dual-Band Band Pass Filter

2021 ◽  
Author(s):  
Anciline V ◽  
Maheswari S
Keyword(s):  
Wireless Communication ◽  
Insertion Loss ◽  
Communication System ◽  
Dual Band ◽  
Band Pass Filter ◽  
Pass Filter ◽  
Wireless Communication System ◽  
Band Pass ◽  
Main Component

The main component widely used in wireless communication system is dual-band band pass filter. This band pass filter is intended in many ways and some are microstrip, waveguide, etc. The dual-band will works in two different frequency ranges which will provide a huge application. This paper compares different microstrip dual-band band pass filter based on the techniques, insertion loss, frequency, etc.

scholarly journals Design and Realization of a Band Pass Filter at D-band Using Gap Waveguide Technology

2020 ◽  
Vol 41 (12) ◽  
pp. 1469-1477
Author(s):  
Jose Luis Vazquez-Roy ◽  
Eva Rajo-Iglesias ◽  
Giacomo Ulisse ◽  
Viktor Krozer
Keyword(s):  
Wireless Communication ◽  
Communication System ◽  
Band Pass Filter ◽  
Low Loss ◽  
Pass Filter ◽  
Wireless Communication System ◽  
Single Pass ◽  
Band Pass ◽  
Manufacturing Tolerances ◽  
Chebyshev Filter

AbstractGap waveguide technology is particularly attractive for the design of passive elements in mm-wave systems. Recently, the so-called zero-gap implementation has proved to be very robust to manufacturing tolerances, while at the same time keeping the low loss associated to the contactless standard gap waveguide. In this paper, a Chebyshev filter working at 145 GHz based on this idea and intended to be used in a wireless communication system is designed and optimized. A conventional milling technique has been used in its fabrication, and good measured results have been obtained in a single-pass process.

scholarly journals Design of Dual Ultra–Wideband Band–Pass Filter Using Stepped Impedance Resonator λg/4 Short Stubs and T–Shaped Band-Stop Filter

Electronics ◽  
2021 ◽  
Vol 10 (16) ◽  
pp. 1951
Author(s):  
Kicheol Yoon ◽  
Kwanggi Kim
Keyword(s):  
Wireless Communication ◽  
Insertion Loss ◽  
Communication Systems ◽  
Dual Band ◽  
Wireless Communication Systems ◽  
Band Pass Filter ◽  
Pass Filter ◽  
Band Stop Filter ◽  
Band Pass ◽  
Stepped Impedance Resonator

Portable wireless communication systems are increasingly in demand in small sizes for human convenience. In wireless communication systems, the performance, size, and unit cost are very important. A band−pass filter is important to sharp cut–off frequency characteristics, size, and frequency selectivity in wireless communication systems. The band−pass filter has three types of techniques in the transmission−zero method, stub−loaded resonator, and stepped impedance resonator for the sharp cut−off frequency characteristic, adjustable bandwidth, and excellent frequency response characteristics. To obtain these characteristics, the impedance ratio and length of a stub are mainly adjusted. It also utilizes a multi–mode technique to increase bandwidth. However, it is analyzed that the problem of reducing the size of the device still remains. To solve these problems, the paper is applied to a stub−loaded resonator and a stepped impedance resonator to control the impedance ratio and the length of the stub to obtain the results of the transmission−zero method, bandwidth control, and size reduction through the folded structure. Dual−band bandwidth was secured by integrating a T−shaped band−stop filter. The designed band–pass filter has center frequencies of 243 GHz and 7.49 GHz, and the insertion loss of a proposed band−pass filter is 0.102 dB and 0.103 dB. Additionally, the return loss of a proposed band−pass filter is 19.13 dB and 19.96 dB, respectively. The bandwidth of a filter is 120% and 105%, respectively. The size of the filter is 0.0708 λg × 0.0533 λg. The designed filter has a good skirt phenomenon, small size, low insertion loss, and dual−band characteristics.

scholarly journals Dual band Stepped Impedance Interdigital Microstrip Filter for LTE Bands

2019 ◽  
Vol 4 (7) ◽  
pp. 28-30
Author(s):  
William Johnson ◽  
Cavin Roger Nunes ◽  
Savio Sebastian Dias ◽  
Siddhi Suresh Parab ◽  
Varsha Shantaram Hatkar
Keyword(s):  
Insertion Loss ◽  
Bandpass Filter ◽  
Dual Band ◽  
Band Pass Filter ◽  
Coupled Resonators ◽  
Microstrip Filter ◽  
Resonant Frequencies ◽  
Pass Filter ◽  
Band Pass ◽  
Low Insertion Loss

In this paper, a dual band microstrip bandpass filter has been proposed utilizing three edge coupled resonators, interdigital stubs and DGS technique. To enhance the coupling degree, two interdigital coupled feed lines are employed in this filter. The suppressing cell consists of stepped impedance ladder type resonators, which provides a wide stopband. The proposed suppressing cell has clear advantages like low insertion loss in the passband and suitable roll off. The frequency response of the filter looks like a standard dual band band-pass filter. The filter exhibits a dual passband with resonant frequencies at 2.2GHz and 3.45GHz covers LTE1 and LTE22 bands.

scholarly journals Design of Complementary Hexagonal Metamaterial Based HMSIW Band-Pass Filter and Reconfigurable SIW Filter Using PIN Diodes

2021 ◽  
Vol 10 (2) ◽  
pp. 19-26
Author(s):  
H. Boubakar ◽  
M. Abri ◽  
M. Benaissa
Keyword(s):  
Insertion Loss ◽  
Filter Design ◽  
Dual Band ◽  
Band Pass Filter ◽  
Pin Diodes ◽  
Pass Filter ◽  
Transmission Bandwidth ◽  
Band Pass ◽  
Very High

This paper is divided into two sections, in the first section, a new SIW and a half-mode SIW band-pass filters based on complementary hexagonal metamaterial cells (C-HMCs) are proposed. Firstly, the SIW is analyzed in case of using two C-HMC cells and in the case of using four of these cells.  Secondly, the HMSIW tunable BPF is studied and optimized. The size of the half mode is reduced by almost 50%. This filter design has a very high insertion loss about -0.4 dB, and significant transmission bandwidth extending from 5.9 GHz to 6.5 GHz. In the second section of this paper, an electronically reconfigurable SIW band-pass filter is proposed. By implementing two PIN diodes in the gaps of the two C-HMC, the results of turning the diodes ON or OFF individually is a switching in the frequency center, between 5.8 GHz and 6.8 GHz. Also, a dual band with two frequency centers at (5.6 GHz and 7.4 GHz) is achieved by turning both of the diodes ON. In addition, the metamaterial properties of all the proposed filters are investigated and presented in this work.

scholarly journals W‐band dual‐band waveguide band‐pass filter using dual‐mode cavities

2018 ◽  
Vol 54 (25) ◽  
pp. 1444-1446
Author(s):  
Jianfei Chen ◽  
Sheng Zhang ◽  
Chao Zhang ◽  
Yuehua Li
Keyword(s):  
Dual Band ◽  
Band Pass Filter ◽  
Dual Mode ◽  
Pass Filter ◽  
W Band ◽  
Band Pass

scholarly journals Design and Realization of Band Pass Filter in K-Band Frequency for Short Range Radar Application

2021 ◽  
Vol 21 (1) ◽  
pp. 1
Author(s):  
Arie Setiawan ◽  
Taufiqqurrachman Taufiqqurrachman ◽  
Adam Kusumah Firdaus ◽  
Fajri Darwis ◽  
Aminuddin Rizal ◽  
...  
Keyword(s):  
Insertion Loss ◽  
Short Range ◽  
Return Loss ◽  
Band Pass Filter ◽  
Pass Filter ◽  
Band Frequency ◽  
Measurement Results ◽  
Band Pass ◽  
Bandwidth Analysis ◽  
K Band

Short range radar (SRR) uses the K-band frequency range in its application. The radar requires high-resolution, so the applied frequency is 1 GHz wide. The filter is one of the devices used to ensure only a predetermined frequency is received by the radar system. This device must have a wide operating bandwidth to meet the specification of the radar. In this paper, a band pass filter (BPF) is proposed. It is designed and fabricated on RO4003C substrate using the substrate integrated waveguide (SIW) technique, results in a wide bandwidth at the K-band frequency that centered at 24 GHz. Besides the bandwidth analysis, the analysis of the insertion loss, the return loss, and the dimension are also reported. The simulated results of the bandpass filter are: VSWR of 1.0308, a return loss of -36.9344 dB, and an insertion loss of -0.6695 dB. The measurement results show that the design obtains a VSWR of 2.067, a return loss of -8.136 dB, and an insertion loss of -4.316  dB. While, it is obtained that the bandwidth is reduced by about 50% compared with the simulation. The result differences between simulation and measurement are mainly due to the imperfect fabrication process.

Reconfigurable dual-mode band-pass filter with switchable bandwidth using PIN diodes

2014 ◽  
Vol 7 (6) ◽  
pp. 655-660 ◽  
Author(s):  
Photos Vryonides ◽  
Symeon Nikolaou ◽  
Sangkil Kim ◽  
Manos M. Tentzeris
Keyword(s):  
Insertion Loss ◽  
Center Frequency ◽  
Band Pass Filter ◽  
Dual Mode ◽  
Pin Diodes ◽  
Pass Filter ◽  
Physical Size ◽  
Wireless Applications ◽  
Band Pass ◽  
Dc Bias

A reconfigurable band-pass filter with switchable bandwidth, for wireless applications is demonstrated using a dual-mode microstrip square-loop resonator. The proposed filter has been designed on Rogers RO4003C and achieves switchable bandwidth by changing the length of two tuning stubs with the implementation of two strategically placed p-i-n diodes as switching elements. The filter was designed with a center frequency of 2.4 GHz and the two distinct operation states have bandwidths, 113 MHz (4.8%) with an insertion loss of 1.2 dB and 35 MHz (1.5%) with an insertion loss of 1.5 dB. The physical size of the fabricated reconfigurable filter including the implementation of the DC bias lines is comparable to the size of a conventional filter.

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