Dual-band bandpass filter with wide stopband and low insertion loss for GNSS signals

2016 ◽  
Author(s):  
Ramon Lopez La Valle ◽  
Javier G. Garcia ◽  
Pedro A. Roncagliolo
Keyword(s):  
Insertion Loss ◽  
Bandpass Filter ◽  
Dual Band ◽  
Low Insertion Loss

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.

Miniaturized Dual-Band Bandpass Filter Using Embedded Dual-Mode Resonator with Controllable Bandwidths

Frequenz ◽  
2016 ◽  
Vol 70 (9-10) ◽  
Author(s):  
Chuanming Zhu ◽  
Jin Xu ◽  
Wei Kang ◽  
Zhenxin Hu ◽  
Wen Wu
Keyword(s):  
Insertion Loss ◽  
Degrees Of Freedom ◽  
Bandpass Filter ◽  
The Other ◽  
Dual Band ◽  
Dual Mode ◽  
Transmission Zeros ◽  
Low Insertion Loss ◽  
Multiple Transmission ◽  
Mode Resonator

AbstractIn this paper, a miniaturized dual-band bandpass filter (DB-BPF) using embedded dual-mode resonator (DMR) with controllable bandwidths is proposed. Two passbands are generated by two sets of resonators operating at two different frequencies. One set of resonators is utilized not only as the resonant elements that yield the lower passband, but also as the feeding structures with source-load coupling to excite the other to produce the upper passband. Sufficient degrees of freedom are achieved to control the center frequencies and bandwidths of two passbands. Moreover, multiple transmission zeros (TZs) are created to improve the passband selectivity of the filter. The design of the filter has been demonstrated by the measurement. The filter features not only miniaturized circuit sizes, low insertion loss, independently controllable central frequencies, but also controllable bandwidths and TZs.

Low-insertion-loss DP3T MMIC switch for dual-band cellular phones

1999 ◽  
Vol 34 (8) ◽  
pp. 1051-1055 ◽  
Author(s):  
A. Nagayama ◽  
M. Nishibe ◽  
T. Inaoka ◽  
N. Mineshima
Keyword(s):  
Insertion Loss ◽  
Dual Band ◽  
Cellular Phones ◽  
Low Insertion Loss

scholarly journals Meander Shaped Bandpass Filter With Low Insertion Loss

IJARCCE ◽  
2019 ◽  
Vol 8 (5) ◽  
pp. 109-113
Author(s):  
Rajapriya S. ◽  
Gomathi G. ◽  
Muruganantham T.
Keyword(s):  
Insertion Loss ◽  
Bandpass Filter ◽  
Low Insertion Loss

Compact Ultra-Wide Upper Stopband Microstrip Dual-Band BPF Using Tapered and Octagonal Loop Resonators

Frequenz ◽  
2020 ◽  
Vol 74 (1-2) ◽  
pp. 61-71 ◽  
Author(s):  
Shiva Khani ◽  
Mohammad Danaie ◽  
Pejman Rezaei ◽  
Ali Shahzadi
Keyword(s):  
Design Process ◽  
Insertion Loss ◽  
Return Loss ◽  
Bandpass Filter ◽  
Analytical Description ◽  
Dual Band ◽  
Equivalent Circuits ◽  
Attenuation Level ◽  
S Matrix

AbstractIn this paper, a microstrip dual-band bandpass filter (DBBPF) based on an octagonal loop resonator (OLR), tapered resonators and open bended stubs (OBSs) is designed and analysed. The proposed structure produces two passbands with the centre frequencies of 3.65 and 5.67 GHz. The marked advantages of the proposed filter are as follows: Two centre frequencies can be individually tuned. The bandwidth of the upper passband can also be controlled. Furthermore, the DBBPF benefits from an ultra-wide upper stopband from 5.9 up to 21 GHz with an attenuation level of higher than 20 dB and a small size of 0.21 λg × 0.26 λg, where λg is the guided wavelength at 3.65 GHz. The designed filter is horizontally and vertically symmetrical leading to a reciprocal S matrix. Other remarkable specifications of the proposed filter are the insertion loss < 0.62 dB, the return loss > 20.2 dB and sharp response. To provide an analytical description, the LC equivalent circuits of initial and main resonators are presented. Acceptable similarity between simulated and measured results verifies the design process.

scholarly journals Low insertion loss microplasma‐based limiter integrated into a microstrip bandpass filter

2015 ◽  
Vol 51 (14) ◽  
pp. 1090-1092 ◽  
Author(s):  
R. Pascaud ◽  
F. Pizarro ◽  
T. Callegari ◽  
L. Liard ◽  
O. Pigaglio ◽  
...  
Keyword(s):  
Insertion Loss ◽  
Bandpass Filter ◽  
Low Insertion Loss
Sign in / Sign up

Export Citation Format

Share Document