World's highest Q characteristics chip inductors go into production
26-01-2016 | By Paul Whytock
Mass-production of the LQP02HQ series of film-type high frequency chip inductors in the ultra-compact 01005 size has started say manufacturers, Murata.
Because of the trend toward increased multiband capability and increasingly sophisticated functions, the configuration of the RF circuits in smart phones and other compact mobile devices is becoming more complicated.
Consequently the number of components being used is increasing and this is exacerbated by the fact that batteries inside mobile devices are constantly increasing in size. This means that RF circuits have to be configured in increasingly limited spaces.
This, says Murata, is a reason for the rising demand for ultra-compact RF inductors with high Q characteristics capable of reducing circuit loss to a minimum.
The Q element is the reciprocal of the dielectric dissipation factor (DF). The higher the Q value, the lower the loss and also the more efficient the inductor.
It is against the backdrop of reduced space for RF circuits that Murata has developed and released the LQP02HQ series of inductors with Q characteristics that are improved over those of the company's LQP02TQ series.
Using the company's latest proprietary micro processing technology, these products feature the optimum coil patterns and L-shaped electrode construction.
By enlarging the dimension in the height rather than in the horizontal direction, Murata believes it has achieved the world's highest Q characteristics in the 01005 size. These characteristics are on a par with those of its LQP03TN_02 series in the 0201 size.
Another feature is that because of the use of high-accuracy monolithic processing technology the new components support an inductor tolerance of ±0.05 nH (0.4 to 1.5 nH).
The series consists of 57 items with inductance values that range from 0.4 nH to 22 nH and the LQP02HQ series complies with the RoHS Directive.
