4) horizontal-doublet antenna 水平偶极子天线 5) HF DF of horizontal polarization direction antennas 短波水平极化定向天线测向 6) polarization of an antenna 天线极化 例句>> 补充资料:同相水平天线 由同相馈电的水平对称振子组成的边射式平面天线阵,为了保证单向的辐射和接收,在阵面的一侧设置反射面。这种天...
we'll discuss methods and techniques for measuring the polarization of an antenna. Note that the polarization varies depending on the direction of radiation from an antenna. For instance, a circularly polarized antenna may be approximately circular only over a narrow beamwidth, and linearly polarized ...
An antenna pattern of the system being arranged to be selectable between a first antenna pattern having a first polarization and a second antenna pattern having a second polarization substantially orthogonal to the first polarization. The first antenna pattern being selected by setting the first and ...
The polarization of an antenna is the polarization of the radiated fields produced by an antenna, evaluated in the far field. Hence, antennas are often classified as "Linearly Polarized" or a "Right Hand Circularly Polarized Antenna". This simple concept is important for antenna to antenna commun...
Based on the author's extensive research at MIT Lincoln Laboratory, this authoritative resource offers an in-depth description of adaptive array design, em... Fenn 被引量: 0发表: 0年 Fore and Aft Channel Reconstruction in the TerraSAR-X Dual Receive Antenna Mode The TerraSAR-X satellite is...
Multipath channel characteristics are compared in terms of impulse responses and their root-mean-square (rms) delay spreads for an omnidirectional antenna and for three directive antennas with different beam widths. From the results of measurements and ray-tracing simulations, the use of a directive ...
This term arises because an antenna is never 100% polarized in a single mode (linear, circular, etc). Hence, two radiation patterns of an antenna are sometimes presented, the co-pol (or desired polarization component) radiation pattern and the cross-polarization radiation pattern. The cross po...
Polarization of waves Polarization of waves Polarization of waves polarization optical coherence tomography polarization potential Polarization Propagator Polarization Reconfigurable Patch Antenna Polarization Rotation Angle Polarization Rotator Polarization Sensitive Optical Coherence Tomography Polarization Shift Keying Pol...
The radiation pattern of an antenna is often depicted on planar cross-sections. The planes are sometimes named relative to the viewer – elevation and azimuth, or vertical and horizontal – but it is also common practice to call the plane in which the electric field lies the E-plane, and ...
The extrapolation technique is probably the most accurate method for the measurement of the gain of microwave antennas. However, it is important to choose ... RE Borland - 《Nasa Sti/recon Technical Report N》 被引量: 2发表: 1990年 Basic antenna transmitting characteristics using an extrapolation...