lol HQ-26 is designed to shoot down ballistic missiles and not jets.
OK, there are HHQ-9 with range 300km, equipped with anti stealth radar.
Search Radars
Several search radars are discovered to be associated with HQ-9, including anti-ballistic radars and
anti-stealth radars.
YLC-20 passive sensor
Although Type 305 radars are effective against stealthy targets such as F-35, full stealth target such as B-2 is difficult to detect. YLC-20 passive radar was conceptually based on KRTP-91
Tamara passive sensor, incorporating experience obtained from documentation acquired during the abortive attempt to procure six Czech
VERA passive sensors. YLC-20 passive radar was first revealed in 2006.
FD-2000 - First revealed in the 8th Zhuhai Airshow, the export version of HQ-9, providing extra anti-stealth capability by incorporating YLC-20
passive radar sensor as an option.
[16] FD-2000 made its name by once securing Turkish surface-to-air missile contract, later cancelled due to political reasons. FD-2000's reaction time from radar contact to missile engagement is around 12–15 seconds. It covers an area of 49000 square kilometres. FD-2000 was on exhibition in Zhuhai Airshow 2014.
[17] Range against aircraft is 125 km.
[18]
https://en.wikipedia.org/wiki/HQ-9#Radars
I've also told you: with numerous radar and datalinked control system, stealthyness of F-35 could be less effective.
So it is so naive if you think China does not anticipate how to handle F-35 and stealth adversary planes.
F-35 is so stealthy it would need to get to less than 100km of the outer edge of the Chinese fleet to be picked up on radar. Before this even happens each F-35B in the strike group would launch 8 Spear 3 ASMs in order to blind the radars of the Chinese destroyers, Just 12 of the F-35Bs can fire nearly 100 missiles and some are bound to get through and blind the Chinese ships.
In which scenario?
In many warfare scenario in open sea (say Indian Ocean), PLAN will firstly salvo Royal carriers with DF-21D from their Type 052D/055.
Or .... with rain of YJ-100 from numerous destroyers:
The "YJ-100" is not a supersonic missile but has a long attack range. Li said that if the range of the "
YJ-100" can reach as long as 800 kilometers, it will strike aircraft carrier and large surface targets in a long distance that beyond visual range and the enemy can hardly response properly.
http://english.chinamil.com.cn/news-channels/china-military-news/2015-02/04/content_6340222.htm
Imagine if China shoot from range 800km with YJ-100, or 1500km with DF-21D ... F-35 range is only 800km, they wont carry external tank if they want to keep stealthy; that means F-35 are still on the deck waiting till the proximity with PLAN fleet around 500km (except HMS QE or PW have air refuel tank plane).
That means PLAN will have first chance to shoot Royal Fleet before F-35 can take off. 
In view of the above, F-35 can do nothing!
Now tell me with this situation, the J-15s would just sit on the carriers waiting for the F-35Bs to launch hundreds of ASMs at the Chinese fleet?
Why should J-15 face to face with F-35?
Will F-35 have any chance to fly, before the carriers sunk?
Any lucky F-35 that can fly off carrier and try to approach PLAN fleet will have to face HHQ-9 guided with anti stealth radar.
As for Chinese ASBMs, you need airborne assets deployed 3-400km from the UK fleet to give reliable targeting information to the ASBMs and the F-35Bs will make sure none of them get anywhere this close to the UK fleet.
Face it, with the UK controlling the air and sub-surface what chance does China have in an open ocean battle?
As you see in the picture below: the airborne assets to help DF-21D is: satelite, and UAV (most probably stealth one).
Tell me how UK F-35 can take Yaogan Satelite and Stealth UAV down?
In the meantime, without GPS how could UK apply F-35 and guided missile effectively?
Dont forget OTH radar that can guide DF-21d during midcourse trajectory, and onboard IR sensor on DF-21D for terminal guidance. AWACS could also help for midcourse guidance.
