| 摘要 |
FIELD: radio engineering. ^ SUBSTANCE: frame bed is divided by transverse cuts into large number n of small parts. Besides inductance L of frame becomes separated into n parts. Capacitors of high capacitance are connected into each cut. Resulting capacitance of obtained garland of capacitors is defined as capacitance C of serially joined capacitances chain. Capacitance C is selected so that it, having inductance L, caused current resonance at frequency within working range of frequencies. Such circuit of connection practically eliminates bias currents between loop sides. What remains is useful purely vortex electric field in frame plane and in its parallel planes. Strong resonant antenna current assists in power extraction from air and accordingly results in increased amplification of antenna. Strip version of loop antenna is also proposed in the form of circuit board, having additional advantages, such as constructivity and broadband response. Strip version of resonator loop antenna may contain several webs inserted one into another, each designed for its frequency range, which makes it possible to cover arbitrary wide range or combination of frequency ranges. ^ EFFECT: improved technical characteristics of loop antenna: amplification, pass band, resistance of settings against impact of surrounding objects, compactness. ^ 3 cl, 7 dwg |
