fractional bandwidth (FBW)
A Miniaturized Tunable Bandpass Filter with Constant Fractional Bandwidth
... Abstract—This paper presents a miniaturized tunable bandpass filter, consisting of two coaxial dielectric resonators and a pair of parallel-coupled lines. A coaxial dielectric resonators and a microstrip line form a new ...
9
Compact Wideband Bandpass Filter Using Open Slot Split Ring Resonator and CMRC
... wide fractional bandwidth (FBW) is needed to cope with the present day wideband RF/wireless communication ...obtaining FBW of only up to ...large FBW, microstrip width and spacing ...
10
A Wide-Band Compact Quadrature Coupler on Multi-Layer Package Substrate
... the fractional bandwidth ...usable fractional bandwidth of the ...possible fractional bandwidth from this 4-layer substrate structure (with the fixed pre-peg thickness), we sweep ...
8
Compact Planar Microstrip Crossover for Beamforming Networks
... Abstract—The design of a fully planar microstrip crossover for beamforming networks is presented. The design starts by using a conventional half-wavelength square patch and two sets of orthogonal feeding lines. ...
10
A Design of Quasi-Arbitrary Phase Difference Unequal Microstrip Power Divider
... Having formulated power divider design in the previous section, the characteristic impedances, electrical length and fractional bandwidth variations with the power division ratio and phase difference are ...
7
220-320 GHz Hemispherical Lens Antennas Using Digital Light Processed Photopolymers
... ABSTRACT This paper presents a 220–320-GHz hemispherical lens antenna fabricated using photopolymer-based additive manufacture and directly fed by the standard WR-3 rectangular waveguide without any additional waveguide ...
8
A Broadband Microstrip-to-Waveguide End-Wall Probe Transition and its Application in Waveguide Termination
... Abstract—A broadband microstrip-to-waveguide end-wall probe transition using a semicircular loop is proposed in this letter. The simulated 20-dB fractional bandwidth for this transition is 48.3% which could ...
6
A Novel Microstrip LC Reconfigurable Bandpass Filter
... shown in Figure 6(b), and it shows that |S 11 | is below −20 dB in the tuning range. The reconfigurable characters are summarized in Figure 6(c). When 0 V to 30 V bias voltage is employed, the center frequency of the ...
9
A Compact Wideband Filtering Power Divider
... This paper presents a compact wideband filtering power divider by using coupled transmission lines and fan-shaped open stubs and a T-shaped slot. Its fractional bandwidth is 60% with the return loss better ...
6
A New Property of Maximally-Flat Lowpass Filter Prototype Coefficients with Application in Dissipative Loss Calculations
... of fractional bandwidth on the excess loss suggested by the denominator of ...of fractional bandwidth and quality factor must be considered as the accuracy criterion for the calculation of ...
11
Investigations on an h -Fractal Wideband Microstrip Filter with Multi-Passbands and a Tuned Notch Band
... and fractal scaling parameters for a H-fractal filter [11], which is termed in this paper as the symmetric case with zero offset. It is then shown that the filter passband and transition (from pass to stop or stop to ...
19
An Efficient Technique for Design of Electrically Thick Differentially-Driven Probe-Fed Microstrip Antennas
... 7% fractional bandwidth was designed with the proposed technique, having its radiated patterns measured and compared with those of a conventional single-probe microstrip ...
8
Compact Bandwidth-Enhanced Center-Fed CPW Zeroth-Order Resonant Antenna Loaded by Parasitic Element
... dB bandwidth for the ZOR antenna without parasitic element is 120 MHz for the frequency range of ...the fractional bandwidth, while it has been significantly improved to ...the fractional ...
8
A Comprehensive Parametric Study of Planar Inverted F Antenna
... impedance bandwidth, but does not have any significant effect on the radiation ...why bandwidth becomes very narrow when W s = 20 mm as shown in Figure ...
11
Small Semi-Circle-Like Slot Antenna for Ultra-Wideband Applications
... Commercial UWB systems require small low-cost antennas with omnidirectional radiation patterns and large bandwidth [1]. It is a well- known fact that printed slot antennas present really appealing physical ...
10
Evaluation Of Growth Performance Traits In Three Strains Of Broiler Chickens Reared In Semi Arid Zone Of Nigeria
... (IBW, FBW, DWG, TWG, DFI, TFI, FCR, NEL, BKL, THL, BDL, WNL, SHL, CBL, CBW, OCL, OCW, BEL, CBW, ELL, ELW) should be given priority in selection due to their high tendency of influencing body weight of the strains ...
5
Fractional stochastic control involve fractional ito levy processes with applications to finance
... of fractional stochastic optimal control with fractional Ito-levy processes, stronovichIto- levy processes and fractional stronovich Ito-levy processes in ...about fractional levy process, ...
11
Localising temperature risk
... Gaussianity of the resulting normalised residuals. The commonly used approaches 1. trun- cated Fourier series, and 2. local polynomial regression (with xed bandwidth) are rather restrictive and do not t the data ...
47
Enhanced Bandwidth Double-Fed Microstrip Slot Antenna with a Pair of L-Shaped Slots
... In this paper, a novel double-fed slot antenna with wide bandwidth capability for UWB applications is proposed. In this design, the proposed antenna can operate from 3 to 18 GHz with Return Loss < 10 dB and the ...
11
Fractional-N PLL based FMCW sweep generator for an 80 GHz radar system with 24.5 GHz bandwidth
... the fractional mode of the commercial frequency synthesizer chip with a high reference frequency is ...the fractional divider inside the synthesizer IC with the build in ramp ...
5