Radiation Characteristics of 3D Resonant Cavity Antenna with Grid-Oscillator Integrated Inside

Table 1

Radiation parameters of passive and active (oscillator) cavity antennas.

Antenna parameters	Passive antenna	Active antenna
(1) H-plane rad. pattern
BW, deg	24	25
SLL, dB	−21	−18
(2) E-plane rad. pattern
BW, deg	22	23
SLL, dB	−23	−22
(3) 𝑓101, GHz	8.779	8.623
(4) G, dB	17.3	16.9
(5) 𝜂, %	78.4	74.8
(6) DC to RF efficiency, %	—	26.0
(7) EIRP, W		5.2
(8) SSB, dBc/Hz	—	−82.0