Wave Parameters Inversion from X-Band Marine Radar Image Sequence Based on the Novel Dispersion Relation Band-Pass Filter on the Moving Platform

2016 ◽  
Vol 13 (8) ◽  
pp. 5470-5477 ◽  
Author(s):  
Yanbo Wei ◽  
Zhizhong Lu ◽  
Yu Huang
2009 ◽  
Vol 51 (7) ◽  
pp. 1722-1725 ◽  
Author(s):  
Zhigang Wang ◽  
Bo Yan ◽  
Ruimin Xu ◽  
Weigan Lin

2012 ◽  
Vol 605-607 ◽  
pp. 1924-1928
Author(s):  
Su Nan Zhang ◽  
Qiang Ye ◽  
Chang Wei Luo

In this paper, a novel three-port combiner based on coaxial cavity is presented, which consists of a band-pass filter with a transmission zero and a ultra-wideband band-stop filter, and the combiner is different to the conventional combiner based on microstrip or stripline. The design and simulated results show that the novel combiner has a good performance, which are insert loss more than -0.5dB and return loss less than -20dB between the GSM/DCS/TD band (800-2170MHz) and WLAN band (2400-2500MHz), the isolation in both bands less than -85dB, respectively. In addition, the performances of the novel combiner are demonstrated experimentally, the measured results have good agreement with simulated results.


1996 ◽  
Vol 19 (2) ◽  
pp. 125-132 ◽  
Author(s):  
S. B. Rane ◽  
Vijaya Puri

The X-band behaviour of a seven-section parallel-coupled microstrip band pass filter and microstripline due to thin-film Al2O3overlay of different thickness is reported in this paper. This Al2O3film can give a homogeneous overlay structure. There is a substantial increase in the bandwidth due to the overlay, the pass band extending towards higher frequency side. In most of the cases, an increase in the pass band transmittance of a microstripline also increases due to a thin-film Al2O3overlay, especially for frequencies less than 9.0 GHz. At higher frequencies, random variations are observed. It is felt that thin-film overlays can be used to modify the microstripline circuit properties, thereby avoiding costly and time consuming elaborate design procedures.


2018 ◽  
Vol 10 (3) ◽  
pp. 301-307 ◽  
Author(s):  
Minjae Jung ◽  
Byung-Wook Min

AbstractWe present a new ultra-wideband (UWB) band-pass filter (BPF) configuration with a stepped impedance short-circuited stub (SISS)-loaded triple-mode resonator (TMR) and stepped impedance radial stub (SIRS). The novel SISS-loaded TMR and SIRS improve the roll-off ratio at both ends. Even though this UWB BPF is based on a single resonator, the measured results show excellent in-band performance with a small insertion loss less than 0.6 dB and return loss greater than −16 dB. The proposed UWB BPF has sharp roll-off ratio of 96 and 43 dB/GHz, respectively, at the lower and upper edges of the pass-band, and a wide stop-band from 10.8 to 15.6 GHz with the rejection greater than 20 dB.


2009 ◽  
Vol 45 (10) ◽  
pp. 4195-4198 ◽  
Author(s):  
Yun Zhu ◽  
Gang Qiu ◽  
K.H. Chi ◽  
B.B.T. Wang ◽  
C.S. Tsai

Author(s):  
Arfan Ridwan Hartawan ◽  
Trasma Yunita ◽  
Levy Olivia Nur

Filter adalah suatu perangkat dalam susunan elektronika telekomunikasi yang berfungsi untuk menyeleksi sinyal tertentu. Hairpin filter adalah salah satu jenis filter yang sering digunakan pada frekuensi microwave. Filter ini dibentuk dari resonator filter edge-couple dengan membalik ujung resonator ke bentuk �U�, ini tentunya akan mengurangi panjang dan meningkatkan aspek rasio secara berarti dalam susunan mikrostipnya. Dalam metode hairpin terdapat saluran terkopel dan saluran tidak terkopel. Perancangan filter BPF dengan metode hairpin ini bekerja pada frekuensi X-Band (9770 MHz) berbasis mikrostrip untuk radar cuaca. Pada realisasi filter ini mempunyai nilai bandwidth 230 MHz dengan insertion loss dibawah -3 dB, return loss -13 dB, dan VSWR = 1,56.


Sign in / Sign up

Export Citation Format

Share Document