A Suspended Stripline Frequency Tripler Using a Left-Handed Nonlinear Transmission Line

Table 1

A performance comparison of frequency tripler.

Title	Structure	Frequency band [GHz]	Conversion Loss [dB]	Size [cm]
[9]	LPF + input matching + HBV + output matching + BPF	13.1~13.9 (fo); Pin = 22 dBm	11.2~17	2 × 1; Alumina
[10]	APDP (anti-parallel pair diode) + BPF	5.72~6.28 (fo); Pin = 22 dBm	16.6~18.5	5 × 2; RT5880
[11]	LPF + phase shifters + Schottky diode + BPF	7~9.5 (fo); Pin = 22 dBm	17~20	5 × 2; RO4003
This work	varactor diode + stub + HPF	2~3.1 (fo); Pin = 25 dBm	15.3~19.8	3 × 0.7; RO4003