3-dB IF bandwidth
A Wideband Circularly Polarized Slot-Loaded Dipole Antenna with L-Shaped Arms and Parasitic Patches
... (AR) bandwidth limits its availability in wideband CP applications, especially for the single-fed CP microstrip antennas [3, ...AR bandwidth, many effective approaches have been demonstrated and ...
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Design of a Wideband Circularly Polarized Cross-Dipole with Wide Axial-Ratio Beamwidth
... wide 3 dB axial-ratio (AR) beamwidth is ...and 3 dB AR beamwidth. The simulated results indicate that the 3 dB AR beamwidth and gain beamwidth of the proposed antenna can achieve ...
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Wideband Single-Feed Circularly Polarized Antenna
... the bandwidth of the single-feed circularly polarized antenna, a novel patch antenna with parasitic elements is ...impedance bandwidth and 3-dB axial ratio bandwidth can be ...impedance ...
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Design of A Circularly Polarized E-shaped Patch Antenna with Enhanced Bandwidth for 2.4 GHz WLAN Applications
... improved bandwidth is presented in this ...–10 dB impedance bandwidth and return loss of the proposed antenna are improved by about ...12 dB, respectively. The axial ratio of the antenna ...
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A Novel Slot for Enhancing the Impedance Bandwidth and Gain of Rectangular Microstrip Antenna
... AUT using (3) gives gain in dB. It is seen that the gain is maximum in case of GRMSA. Hence GRMSA enhances the gain from 0.86 to 3 dB when compared to the gain of conventional RMSA. However, ...
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Development of Circularly Polarized Array Antenna for Synthetic Aperture Radar Sensor Installed on UAV
... In the simulation, on the other hand, the value is 11 MHz, or around 0.87% of the operation frequency. The minimum axial ratio of the measured data is around 1.13 dB, exhibiting a difference of around 0.6 ...
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Design of Circularly Polarized Planar Magneto-Electric Dipole Antenna
... A novel and simple circularly polarized planar magneto-electric dipole antenna with inverted U-shaped feed design has been designed and fabricated. The measured and simulated results indicate that it possesses 21.1% ...
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The theory of a continuous damped vibration absorber to reduce broad band wave propagation in beams
... the bandwidth of such a neutraliser, defined there as the frequency range over which the attenuation is greater than 3 dB, is found to be equal to ω a µ k/4, where ω a is the tuning frequency (the ...
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Improve Gain, Noise figure and Spurious Free Dynamic Range in Intensity Modulation Analog Photonic link using Digital Signal postprocessing compensation by Linearized Downconverting Algorithm.
... 27.5 dB, respectively and spurious-free dynamic range of 128.3 dB in 1-Hz bandwidth which when compared by using linearized down converting algorithm improves to give noise figure and gain of the ...
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Results from the national intercomparison for rise time and bandwidth measurements within the German Calibration Service (Deutscher Kalibrierdienst – DKD)
... − 3 dB bandwidth and attenuation at 500 MHz none of the measurement values of the partici- pants including PTB were appropriate to use as a reference ...
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Design of a Circularly Polarized Microstrip Antenna for WLAN
... best 3-dB axial ratio bandwidth at ...10 dB return loss bandwidth and the 3 dB axial ratio bandwidth were obtained when stub length was 5 ...
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A saturated red color converter for visible light communication using a blend of star shaped organic semiconductors
... modulation bandwidth and data rate using an OOK modulation scheme. The measured 3 dB modulation bandwidth of T4BT/T-B3 blends (~55 MHz) was more than 10 times higher, and the achieved data ...
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Novel fast color-converter for visible light communication using a blend of conjugated polymers
... modulation bandwidth and data rate. The achieved 3 dB modulation bandwidth (electrical-electrical) is 40 times higher than commercially available phosphor LEDs, and 5 times higher than ...
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Piezoelectric Transducer-Tuned Fourth-Order Microstrip Bandpass Filter with Cross-Coupling
... A fourth-order bandpass filter is designed by using microstrip open-loop resonators. A cross coupling is introduced between the first and fourth resonators, and two transmission zeros are produced on both sides of the ...
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Application Research on Two Types of 8QAM OFDM Optical Access Signals
... When 8QAM-OFDM optical signals are passed through the single mode fiber (SMF), it is amplified by one tunable erbium doped fiber amplifier (EDFA) to compensate attenuation in the optical fiber link. At the receiver, a ...
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Wideband Cavity-Backed Crossed Dipoles for Circular Polarization
... A novel CBCDA is investigated in the paper. By using the crossed dipoles as an exciter, broadband CP performances are achieved. From the simulated results, the antenna shows a 3-dB axial-ratio ...
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Bandwidth and Gain Enhancement for Probe-Fed CP Microstrip Antenna by Loading with Parasitical Patches
... antenna bandwidth by the mutual coupling effect ...impedance bandwidth and high gain properties can be achieved by loading with parasitical ...impedance bandwidth of the loaded one can be much wider ...
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Axial Ratio Enhancement of Equilateral Triangular-Ring Slot Antenna Using Coupled Diagonal Line Slots
... wide 3-dB ARBW thanks to its compact size, light weight and simple fabrication ...CP bandwidth but with lower gain than a microstrip-line-fed ...48% 3-dB ARBW and ...broader ...
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Design of a 0.13 µm SiGe Limiting Amplifier with 14.6 THz Gain-Bandwidth-Product
... for bandwidth enhancement and is optimized for max- imum group delay flatness to minimize phase distortion of the input ...circuit bandwidth with inductive ...56.6 dB voltage gain and 21.5 GHz ...
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A Terahertz Quarter Wave Plate Based on Staggered Split Ring Resonators
... Abstract—In this paper, we propose a transmissive quarter wave plate (QWP) which can provide linear-to-circular polarization conversion in terahertz (THz). The structure is composed of one dielectric layer with staggered ...
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